Have you guys ever used hand held routers to cut aluminum? It sounds a bit precarious to me. Just saying. Not saying it's safe or unsafe, but it's something I would be way more concerned about than what kind of saw blade is used in a chop saw.
I don't think what I suggested is unsafe, even if not the best blade to use. I have only lost teeth (from the blade, not mine) once, and as I said, this was because the piece came loose while it was being cut. Probably because I was trying to cut something too narrow, and as such didn't have it clamped down and wasn't able to hang onto it. So yeah, that was a mistake I made, and I recommend to others not to do that. Safety glasses are a good idea for any work with power tools. There is a greater risk of accidentally chopping a finger off than to be hit with flying teeth when cutting aluminum in my opinion. But if buying a new blade specifically for cutting aluminum, then your advice is definitely valid.
Standard legal disclaimer: I don't recommend following my example and will in no way be held liable, for negligence, bad advice, gross negligence, or by any other method of legal reasoning.
There, now
I'M safe, even if the OP isn't.