Your belief is irrelevant. Bioware said it is canon, so it is canon.
For someone who is staunchly defending the lore, you're certainly being picky about what is canon when the canon goes against your stance.
Yes, the shielding was around the shard of Sovereign. We even have a dialogue about it.
Because we don't have that much inert Reaper pieces. All we know is it can trap the signal in that space, not that if a person is in that space it blocks it out. It could be like a one-way mirror in that respect.
You'd have to ask Bioware. My answer would only be a hypothesis. If you want my guess, it'd be because it fit the parameters of what a Cruiser does, which according to the Codex is "Cruisers are middle-weight combatants, faster than dreadnoughts, and more heavily-armed than frigates." and "Cruiser-weight starships are the standard combat unit encountered away from large naval bases, the "poor bloody infantry" of most fleets." Since the Black Ark fit those parameters and is the only known Collector ship, it was dubbed a Cruiser. Nowhere does the lore say that a ship is classified by its size, just its capabilities and role.
And yet despite there being many variants of them, we call all dogs dogs, all cats cats, all birds birds, all fish fish, all ships ships, etc. Husk is the term referencing a being who was weaponized by the Reapers.
Yes, you are being nitpicky, and that's coming from me who can be nitpicky about things.
1) The canonicity (is that a word?) of MP has been in doubt since Day 1. You can have Cerberus troops fighting on Earth. You can have groups fighting whom Shepard has never recruited, or have even been wiped out. Look back at the history of the forums and yes you will see debate about this.
So, like I said, if Bioware finally, definitively comes down and says that MP is canon, then I guess I will have to accept it. But they will really be grasping at straws to ad validity to this mess.
2) The only dialogue I recall (though I admit it has been quite some time since I have played) is the whole "Vanguard of our destruction, eh? How's that working out for you?" line
3) The Collector Cruiser is called a cruiser quite literally from the moment it first appears. Before it's capabilities are even shown. There was no comparison between it and other Collector ships so there's no way of knowing if it was a "middleweight" ship or not. The logical assumption is that it was compared based on known ship classifications. Namely that of the Systems Alliance and the Council races. That the Collector ship was of similar size and tonnage.
If it rivals Sovereign in size (which was called a dreadnought despite it's purpose and capabilities being largely unknown) then why isn't it a dreadnought too?
4) Fine, I will stipulate that, despite them always being referred to as "Collectors" in the past, the "husks" on Palaven could have included Collectors. Happy?
For your first point. Because the only thing they have to provide is a possible explanation that works. You are arguing that it is impossible in the lore, they provide a possibility. No one is arguing that we know bioware has done it right, only that in the existing lore it is possible to have explanations around this.
For your 2nd point. Cut scene accuracy and titles isn't something to hang your hat on. You went in the ship it is farking massive, maybe bigger than soverign massive, it can carry millions of people. In game aspects contradict your cut scene impressions. And the term cruiser is fairly loose in the setting.
1)Then why do I get so much static whenever I mention (including using direct quotes and video from the game) that barring physical incapability, the Reapers should have visited Andromeda long ago, if such ship engines are possible? I smell hypocrisy on some people here. Especially since I do not deny that intergalactic travel is possible. Only that the time frame we are working with here makes it's development at this point rather ludicrous.
2) Cruisers are big ships. Hundreds of meters long. And something like the Collector cruiser will feels especially big, since it's mostly storage space. No need for supplies, life support, crew quarters, etc. So the fact that it feels big and open is no surprise.
However, cruisers are smaller than dreadnoughts (though not always by much, given that chart). That is a constant. Sovereign was twice the size of most dreadnoughts. And the Collector Cruiser is nearly as large as Sovereign. So why is it explicitly declared a "cruiser"?