nah, I wouldn't blow up it would protect itself. It might play a little but eventually it would protect. Then you would have to reboot the amp for it to come back on and it'll probably just protect again. If you make that'll habit then you end up messing up the amp.
If the amp is not 2ohms stable and you use it at that load, it will most likely overheat and go into some kind of protection mode. Depending on how well the amp was designed, it will reset itself once it cools down, or just break down. I've seen amps with all kinds of protections built in and still fail.