[wwittman]

It wasn’t meant to be ‘mean’

But rather to make a point.
I think your ‘instructor’ is very much missing the point.

Playing along to The Beatles is in fact far more useful and instructive than playing Ticket To Ride to a click

If you’re making an EDM version of Ticket To Ride, then by all means, a fixed tempo is almost certainly necessary.
But if not...

My point in posting is that it’s far too common these days for people to obsess about ‘perfect’ tempo (and tuning, for that matter) even when it’s in fact antithetical or at least not HELPFUL to making good records of certain types.