I mean, what does long mean in the grand scheme of things? Is a minute or two long?

I think, no, in a vacuum they are fine, at least up to where I got. But even a short thing can get annoying if you need to do it often enough, which is at least my problem, and apparently also that of other players that don't mind the difficulty.

It's relative to the boss for me. If the runback is 2x the time of an early fight, it sucks. I know it incentivises learning, but some bosses really do wipe you in a couple of hits at the beginning - a number of times.