I understand that what I said was a bitch out, I just didn't know if I was within my rights to ask about it since I'm in the minority as far as students who attend regularly and are dishing out more money than me.
Don't be such a pansy about it. I don't know how it is everywhere, but where I lived, certain coaches didn't get along so great with other coaches, and would definitely feel slighted if you were to just up and leave without talking to them first. The fight scene is a pretty small world, and everyone generally knows everyone in a particular area. Which means the same thing happens anytime you have a group of people who run in the same circle for long enough- drama inevitably develops, and someone gets to not liking someone else. And don't forget, this isn't just social "he said she said" high school bullshit you may create. This is their business we're talking about, and people tend to get pretty involved where money is concerned.
Making an offhand comment about how maybe there should be more striking classes is not talking to them about it. Sack up and tell your coach the same thing you told us- you like the place, but you don't feel like you're getting what you need in terms of striking instruction, and you were thinking of checking this other place out, but you wanted to ask him if it was cool first because you respect him and don't want to step on any toes. Maybe he won't like it and tell you to jump off a cliff, or maybe he'll take it seriously and see about adding some more striking if he knows his students really want it. Or maybe he'll say "Oh, yeah, I know the dude who runs XYZ Gym, he's great, we go way back." Point is, you don't know. And if he doesn't like it, at least you legitimately did your half and you can walk away with a clean conscience, instead of having to ask a board full of complete strangers if you did the right thing or not.
At the end of the day, it's your dollar. If you're not getting what you want, take your money elsewhere. It's your choice as the customer. Just don't be a dick about it, you don't generally get your bridges back once you burn them.