I'm confused... are you stating what your current offerings consist of (along with the limitations and your current reasons for those limitations) or are you stating what some of the other instructors are arguing the current offerings should be limited to?
Anything less that what you have stated, I think, is a mistake.
If what you are stating is that some of the other instructors are arguing to move towards, then I tend to agree with them. Indeed, team movements aren't necessary. Again, though, to place those limits is to deny those who perhaps want to get a step-up to going into some form of LE. Also, what about those who take such classes simply b/c they are fascinated by it and enjoy it as a form of entertainment/personal growth/knowledge???
Obviously it is your shop's right to restrict what you offer however you wish -- especially if you don't have enough customers for a certain class. But if you have plenty of customers and no better reason for limiting your offerings than just "the public shouldn't know these things", you are just doing the public a disservice. The "bad guys" will still learn it -- videos, ex-military who work for $$$ and not values, books, internet, etc.
Protecting the public against the public is always a lost cause.
"Men cannot be enslaved politically until they have been disarmed ideologically. When they are so disarmed, it is the victims who take the lead in the process of their own destruction." -- Ayn Rand, Russian-American Philosopher (1905-1982).