I would've preferred them using the whole squad in the Priority Earth sequence. Let me have a last fight with them instead. Or some scenes. Like this stuff with Zaeed or Jack. Saying goodbye to a hologram is weak. This is a game...put in some action and gameplay.
In any case, I'm glad that kind of stuff isn't in the game. Those mods seem to offer too much exposition.
On the flipside, Casey Hudson is on the other extreme end... it seemed like he was determined to have everything "high level". I'm inferring this from an interview with Mac Walters... where he talked about Hudson cutting out dialogue with the Catalyst, or coming in every day telling him to make Anderson's last conversation shorter. It makes me wonder what other areas he was doing this. Because Priority Earth seems to follow this whole "less is more" rule in it's entire presentation. And it sucks.
The holo stuff was weak, yes. Sure, at least people who loved/romanced some of these characters had a chance to say goodbye to them, but they were still neglected in comparism to the "main squad".
However, I blame time constraints, at least partly. I mean, they obviously had some bigger ideas with the audio clips flowing around youtube, sad that they had to abandon this.
Maybe that's also the reason for the shortening you mentioned from Casey Hudson.