Are they the banana jacks where the outside is a nut you can tighten down on bare wire or spade terminals? That's actually good—nearly all the speakers I have ever used have been bare wire.
I agree completely! Banana plugs are awesome, and nothing prevents you from screwing them onto bare wire. In fact, that's how it's usually done, isn't it? (It's certainly how it's done at my house.)
Screw once, and then you're set for life!
What drives me crazy are those stupid spring-loaded things that many receivers and speakers have these days. The springs eventually get loose and then the connections get flakey.