Only reason why i like this changes is: that make duels a lot more interesting, before this change many duelist go for left - right routine all the time and if they were good blockers too, duels was incredible boring (better duelist perform castor swing every second atack - this was actually good because of possibility to chamber and not dying of boredom
)
current state:
2h: Castor swing is still possible but harder. People with dull left - right slash playstyle are screwed and need to do something more creative than wait till opponent is stunned after they blocked stab and got free hit. Its big nerf for no stab weapons. Its buff for stabwhores.
1h: its stronger than ever
Polearm: Not much testing yet, but its solid nerf for polearms as right slash is their main atack
so yeah, its need to be little bit polished
EDIT: wrong thread is about a 2h right atack nerf not about combat speed