Hypothetically, if one were to install something like a banned extension, where would one go to get it? Hypothetically, of course.

You can still use it though, just like when google bans an app from the play store you can still get it elsewhere.

It’s not banned. Even this notice says it can be re-enabled easily.

You can just use the filter list in your current ad blocker and avoid an additional extension all together. I’ve had BPC as a list in Adguard for ages, and it works flawlessly.