True but i assume it can't have been made compulsory if not a single person wore one. At the minute the club would definitely enforce it due to not wanting to breach any safety certificates and potentially bring closed.
Surely that's more down to Blackpool as a club. If they said you had to wear one they would have. For example I only wear a mask where I have to. If I was allowed in a stadium and it wasn't compulsory to wear one then I wouldn't.