I'll add my 2c before the lads hopefully add theirs on the pod.
I think the thing that is stopping businesses from shifting their audience to Web3 is that it's just so much easier and profitable in the short term to remain on Facebook and the like.
Moving their audience to a censorship-resistant Web3 account such as Hive is right now more of a risk mitigation activity.
And if they don't believe they will be banned/censored on a Web2 platform (because really who does? it'll happen to someone else, not me etc), then there's no rush.