The problem is that it is very tempting to utilize the MBTI to predict and ascertain things about people that in reality have very little to do with MBTI.
Like how "sensors like small talk". No. Nobody likes small talk. There is no one waking up in the morning and going "Hot damn, I can't wait to uncomfortably talk to strangers about gas prices and the weather!".
Or, "sensors cannot understand theory". No, they can. If they couldn't understand theory, there wouldn't be any sensors on this site, and there are plenty. Is theory where their minds wonder when they have free time? Maybe, maybe not. When faced with a problem are they going to theorize, speculate, and build castles in the sky? Probably not. It's not what they prefer. But when it's the only option, many of them will do it anyway contrary to their preference because they have the ability.
My preference is to be a sarcastic, wise cracking, slacker, who likes to theorize, speculate, and analyze. But frequently I'm polite, industrious, routinized, and fall back on what's worked before and get shit done. I do this because that's what being a functioning member of society demands of me, and I have the ability to meet those demands, even though they are a far cry from my preference.