As someone who primarily plays hunter-
I feel as a WHOLE, legacy was heavily hunter favored-
With the soul exception of kraken, who i feel was borderline “overpowered” for most of the games life, against most of the hunters (Certain comps dealt with him better, and definitely made the fight more balanced when done right. The game was always capable of being snowballed even still by either side, but it was far better).
So as a whole? Yea i think 2 minutes is fine- and probably necessary with “good” hunters. Good hunters should be able to work with this timer.
If theres a large discrepancy between the monster and hunter, or the monster is a good kraken player- id lean towards 1:30