Isn't It True That the Earth is Rectangular?

Something one of my French teachers (whom I happen to like a lot, actually) said (in French, of course, but I'm not planning on using that language):

"What tenses belong to the indicative mode? Well, all those that we use constantly... present, future, past perfect, past tense, conditional... let me check the "Bescherelle" (a conjugation book)... yeah, that's right."

Am I weird for being extremely bothered by that? Oh, need I mention that I don't get the point of asking such a question during a course of this level? Or the fact that nobody contradicted her? ( not to show off, but I've already done it twice and, although she took it well, I'm not going to push her limits :D )