No.. not just cuz the attackers were Muslim.. because it was Islamic ideology (their version, perverted version.. whtvr) that struck..
That’s what the mosque has to do with the terrorists.
If you reverse the situation how would you feel? Prosperous Pakistan.. developed country.. struck by lets say jewish terrorists trying to wage war against Islam.. striking Karachi downtown.. heart of Pakistan.. and a few years later there is a Jewish center being built there?