The problem with "Crusade mentality" is if focuses on the extreme (both in forwarding it's own agenda as well as attempting to disparage the contra viewpoint " ) as opposed to observing the vast middle ground and its objective reality . Unfortunately video does a lot of that.
The entire spiel about a beginner player learning a new piece, who is still struggling with just making chord changes, or the correct finger placement for a melody, not using a metronome, is ludicrous as a general argument against the general concept practicing with a metronome, as well as being a total DUH .
Obviously one should be able to make chord changes fluidly before attempting to work on the timing I mean DOUBLE DUH.
Not to mention metronomes have the ability so slow down, so as to fit the speed one can actually make the changes at
Also stating symphony players and rock players etc. did/do not ever practice with a met, is total complete wild speculation, maybe they did or maybe they didn't, who knows, but Glittering Generalities are foolish as an argument. Not to mention Practice and Performance are to very different situations.
Juss sayin.