Hmm... Interesting. I'm not against this, and it's not like it would invalidate too many old designs, either (aside from maybe a design with HGR or AC/20), other than have people wondering why they didn't take advantage of it before.
It's more if anyone who never uses them would accept it.
It does have some interesting implications for Quad Turrets, though. So that's something that should be of a mind, and possibly addressed.