No, insulting no man! That's a joke we use to do with my flatmate who was from UK (and btw speaking great spanish).
I use to complain about my accent when speaking english and he told me literally "dude, no complains as you can speak 4 languages and 90% of english speakers only 1" and I took his advise about not to think on that.
And I have to say that 90% of the english natives really appreciate to speak with a non native speaker because they really appreciate and are sensitive to our big amount of energy spent on trying to improve it every day.
Aviation in Spanish? Hell no! Much better and funny in english, of course. If it was for me I will take that lazy IB and AF guys and make them speak all the time with the tower in english.
But, again, that's not the point.
Keep making disgusting comments about these guys, you know, I'm sure they don't have time to be reading at you while doing their courses so nothing to worry about
BTW, sometimes spanish + elp is much better than 2
P.S: you were right when you said I don't know much about QR. I didn't get you when you talked about psycomethrics in the QR assessment, didn't they do it for you? That would explain many things