We all could see that Unity's layoff was coming, that pricing backlash not only drove away many developers, also probably was driven by troubling financial within the organization.
Twitch is sort of unexpected, but when I see the number of impromptu rules they rolled out and rolled back last year, whether from restricting multi-streaming, to limiting showing brands logo on stream, to restricting / unrestricting female streamers from showing too much skin, etc. I assume that means that even with all those intrusive ads, Twitch is still losing money.
I guess from now on, when a tech company starts to arbitrarily change their T&C / rules to either protect their revenue / market share, and maybe rolling back from backlashes, then it's a sign that there's trouble brewing (if you work at those companies, beware)