Even granting your supposed truisms, this paragraph is quite flawed. Just because someone is in the room doesn't mean they were valued or listened to. Just about every planning disaster had someone in the room that said "this is going to be a disaster" and then it went forward anyway.
I concur.
I can speak from direct experience that being the voice of reason in a meeting is not a ticket to being listened to. There are the egos and the perceived importance when you put a bunch of people in a room that have differing aims and "truths." It is really hard to get people to see beyond there preconceived notions.
My brain naturally starts scenario building when someone says something about a problem. I ask questions and basically I try to determine the board state and the "rules" of the game (in my case it involves local politics and legislation). My decades of gaming gives me a quick toolset to break things down and find the win condition or better the win, win. Unfortunately, this usually leads me to suggest courses of action that are counter-intuitive. I have to remember to explain the 10 or 20 steps in my thinking that got me there and if I am lucky they maybe understand more than a couple of them. I initially got dismissed, a lot. I am usually right. I have more juice now. That only took me 5 years to build.
Let's not get into whole unequal dynamics of power in the room. If you are VP of X and a bunch of other VPs and directors that are in favor with the big cheese (read CEO, COO, CFO, CTO, etc.) and you are not, well speaking out is not a healthy prospect for continued employment. It is even more compounded when you are the new person at the table.
Then there are personality types. A lot of people are conflict avoidant. This means folks who are not usually walk all over them.
So, no even if Kyle Brinks spoke up about the impending disaster before WotC (and this is requires and assumption that he could see it that way) the only thing Kyle likely got to do is the "I told you so" dance when it blew up.
Again, we do not know all the players in the room or the power dynamics of that room. Disasters like this are usually way more complicated than most of the speculation here allows for. And if anyone here is saying they know what really happened... well, I have a bridge in Brooklyn I can sell you, it was only used by a grandmother to go to church on Sundays, and it is almost brand new...