I don't think it's really the job of ETF2L to act on such comments that happen "outside" of the game (not in official games, on stream etc.).
Then again, what ondkaja says is also very true, prem players simply are a face of etf2l and should be treated differently as such.
The question would be where to draw the line. Would this apply to prem only? All divs?
It's way more a job of us, the community, to not let such things pass by and be forgotten after a week or two.
Its also a job of the orgs that are a part of TF2 (se7en, svift etc.) to not pick up players that make such public statements. Or if they do, for us to not support them for this.
Are they part of of a team that tries to fundrais for a lan? Don't fucking support them.
Are they streaming? Don't watch it.
And so on, we as the community have the option to act on it.