The theory behind jumping all over social media with protests is that it makes it likely the social media team will report back that people are furious and it also publicizes the actions the folks are angry at, in a place other customers are likely to see it.
Now, it's not clear how much those reports of social media protests matter -- we're probably years away from finding out what swayed WotC in the OGL case -- but it's not an illogical approach. It may be futile, but no one outside WotC has any way of knowing.
That said, protesting on an Extra Life post may be in poor taste, but that's up to each person to decide.