Yeah, it feels kinda like OP is really wondering if what's there now is just as good as what used to be there because it might still be labeled "art". Not all art is equal, and I'd much rather have nice looking art than art that says "this used to look nice but now it's just dicks". But, given that some asshole decided to just paint over it with monocolour, I'd rather have that "fuck you" than to see it left blank.

I hope the 2nd artist has the determination to put it back if the owners try to get rid of it again, but the patience to wait until they stop watching it so they don't get caught. Or make them spend money on a surveillance system and someone to monitor it but still put it back one or two lines at a time. Until the owners have an aneurysm and it eventually ends up in the hands of someone more chill.