Oh! I absolutely agree. The best professors I ever had not only knew their material well but loved what they were teaching dearly. I was more so speaking to a very select subset of professors whose professional obliviousness, whether willful or not, causes an inability to understand the perspective of the learner. That lack, in turn, oftentimes renders their class an agonizing, stressful mess that few look back on fondly.

That group of professors is hardly a majority, but are strikingly prevalent within stem in comparison to other faculties.

XCDC is once again relevant