Well, for my own project, sure -- I can add the repo to my Gitlab account and continue without skipping hardly a beat. But when the project isn't mine , and the repo owner isn't either wanting to move it, or in any position to move it, then if I'm suspended the project continues but without my involvement. Sure I can create a new Github account and go through a VPN into Github again as that new user, but there's no guarantee the same thing won't happen at a later time once again using my new account.

In hindsight though, Github suspending my account would certainly be an incentive that would drive me to Gitlab for everything!