Is it possible to overcome? Sure.
Yes, you can heal after shooting yourself in the foot.
(And, of course, removing attribution is violating licenses). However, they're unlikely to face litigation for this. The possible legal consequences aren't the actual consequences they're likely to face.
I agree adding their own license was hamfisted, but honestly, if I'm funding a company I hope they would spend less than <$1 on legal and licensing initially. The first order of business is almost always proving whether your business should even exist.
Cloning an open source project and having Chat-GPT write you an enterprise license is not how you "prove whether your business should even exist." It's how you scam rich people into giving you money.
They claim that they intended to make the project open source all along. Just keeping the Apache license would have been less time consuming than asking ChatGPT for one, with the added benefit of being a real license.
https://github.com/trypear/pearai-submodule/commit/335436b47...
It's claimed to be accidental, but the entire commit history is full of commits saying "remove cont....." that neuter all references to Continue. They didn't even want the name in the commit history.