I'd have expected you to know better, then.
Why on earth would you write that it's "best to stick to same make and model", when actually it's bloody critical you do? That's just about the most ridiculous thing you could possibly have said. Maybe you just didn't think before writing so you phrased it badly, but you can be damn sure I'm going to jump on it and make it absolutely clear that mixing tyres on an axle is a no-no just in case the person who asked the question literally has no idea you can't do that. Not everyone is an expert, and I'd rather someone thought I was being condescending than give misleading advice.
It's not critical at all, it's advisable, and that's what I advised. If it was critical, it would be illegal to fit different tyres across an axle. It isn't illegal because it isn't critical. The only legality is ply and radial, where you can't mix them in any way.
Stop over blowing it