I agree I can't find any evidence of impropriety, for now anyway. I just think the connection to TCT is worth thinking about.
Anyway, if they really just did pick 1-4, that seems almost worse than favoritism. What's the point of the committee then? I would imagine the argument would be something like "all other things being equal, they'll just choose the top 4 from the trials unless there is sufficient reason to override it, and in this case there was not." Obviously Biles, Lee and Chiles would be chosen based on their abilities and performance, and no sensible person would have changed those 3. But it seems at least that the 4th member should really be chosen based on countering any weaknesses of these top 3, and really not who happened to be 4th place at trials.
While I have followed gymnastics for a bit, I don't really know the relative abilities and consistency of all of these athletes in the 4 events. Does anyone have complete lists of each of their individual event scores from both nights of trials, nationals and other competitions from this year? That's another set of info I was trying to find but could not. I'd like to see a thorough analysis based on the numbers.
Lastly, does anyone think MyKayla (and also Chellsie Memmel at nationals) were conspicuously underscored at times? And if so, do you think it is based on ageism, or perhaps one "who is expected to do well" gets scored higher? Again it's hard to prove, but I have definitely seen the spectre of this bias in figure skating. Conspicuous underscoring and honestly what I would call abuse of the execution side of the scoring, seemingly to reward "who is expected to do well" and punish any dark horse, outsider, unknown or anyone making a comeback... anyone who hasn't "paid their dues" so to speak.