A. Clear how? Shepard proved nothing, and did nothing to change what was known from the start to the Catalyst.
Synthetics are a threat to organics, a momentary peace and some examples of cooperation between Synthetics and Organics do not change anything.
So why should the Catalyst doubt itself?
The Power of Love and Friendship? Please. It should have already seen everything during the who-knows-how-many
cycles before this one. You shouldn't be able to out-think, out maneuver, impress, or surprise something like that.
And even so, perhaps I could understand ordering a retreat in order to re-evaluate the problem,
but destroying itself therefore losing any chance of solving the problem, or giving control to an infinitely inferior intelligence,
sounds to you like choices that a super-smart cold, hard, logic machine would choose?
You are grasping at straws.
The Rest
As for the rest I'll just say this:
Regarding corporations: You seem to have much faith in them, good for you. I disagree, and don't really care enough to try and convince you otherwise.
I simply think that inherently most large corporations are hardwired to consider the agenda of maximizing profit first, while being nice or friendly to consumers is either much later down the line, or not on the agenda at all.
Regarding your "condemnation" of "The Fans":
You condemned a large group of people merely because of their associations. There is no cohesive unit called "Bioware's Fans".
There is an unholy mix of persons of any type imaginable, that usually can agree on very little.
On the ending, there was a very broad consensus: Most people simply didn't like it. This was where the cohesion ended.
This cohesive unit splintered when it came to the question of why the ending is so bad, and to the level of reaction.
Your coming on your high horse in your shining armor to defend poor Bioware by pretending like "The Fans" are a cohesive body that can be blamed
for the actions of individuals, is rather hypocritical considering.
Did those to devs you mentioned deserve a verbal lynching? Of course not. (regardless if they are to blame for the ending or not)
That said, I will not be blamed for actions that others performed that I didn't agree with and that had nothing to do with me,
nor do I feel the need to apologize for them.
The fans were not nice and polite when they protested the ending (that again was very widely disliked for multiple reasons)?
Well tough, I didn't think that using this ending, or Bioware's responses immediately after the ending were polite either.
I also don't consider politeness for its own sake as highly as you seem to consider it.
Sometimes, you simply can't be polite if you want to make your point.