While Flurry of Xuen damage increased by 40%. Is it better to choose than Hit combo on the talent tree?
Depends on your other hero/talent choices. As per usual, best practice is to sim it as there are lots of things at play but at the very least its a lot more competitive.
For me, in every iteration hit combo comes out on top, by a marginal amount in AoE and a noticeable difference in single target.
The buff made the gap smaller and the choice more preferential. You get to demand Flurry of Xuen through Invoke which sometimes makes the damage more functional/practical, compared to a sim which does not necessarily reflect practical realities.
Unfortunately the 40% buff to Flurry of Xuen was also paired with a fix to a bug that was increasing its damage, so there was very little change in its strength. Numerically, Hit Combo is still the superior talent.