What about the 10 instances every day on this forum of people asking "please pitch this note"? Not everyone has spent hundreds of hours training their ears.
I don't think people should be using tuners because they suck xoxo (and that's overexaggerated, more like a few a week), but if they know how to use a spectrogram, I don't think there's anything wrong with using it to help. I mostly use my ears, but it can make looking for specific notes (like when I added B♭4's and B4's to Utada's, I was able to do it in like an hour)/helping to pitch obscured notes a lot easier.
I actually sometimes use an online tuner to help pitch notes if they happen to be within my own range: I hit the same note myself, pause the music and pitch my version so there are no backing instruments to confuse the tuner, then I double check with an online piano keyboard (as posted above). Tuners can be useful but in my experience they're not 100% reliable.