The last thing to ever fall is the VIEWERSHIP... StarCraft 2 being one hell of an epic example of this.
Now, With huge orgs like 100T comes big sponsors supporting the scene. This is beneficial to EVERYONE. Yes, betting sites are supporting but, they could pull out the scene in the future. Whaaaaat lol. Laws can pass, policies can be created etc. Nothing is ever a guarantee lol. Secondly, MARKETING to NA players/viewers who spend what??? $$$$$$$ This helps orgs EVERYWHERE. When majors come we BUY tons of stickers, cases etc. We spend more money then most countries lol. Heck, we buy merch just in general.
What I'm trying to get through to you is losing a wealthy support system like the United States has consequences across the board. Cloud9 pulling out MAY affect an EU org to possibly pull out ORRRR enter the scene. This is a FOLLOWER industry...
Look... Believe whatever bro. I do know you have 0 clue on how markets or businesses works. There's repercussions when major players leave.