Knockback is Working as Intended. STO was never intended to have ground combat, as you can see in this video. Now, thanks to perpetually greyed out power trays that let a level 10 beat a fully equipped level 50 by keeping them from taking any actions, ground combat is finally gone! Well done, Cryptic!
PS: Get a knock or hold to start the sequence. Go close. Push 2 on your sword. Jog after them and repeat. Borg Pingpong is a fun new endgame minigame, for when you want a break from space combat!
I don't do much PvP, but in PvE the sword also "auto attack" better than other weapons. I notice with the option "toggle, never cancel" works a lot better with sword. I test this on Defera using my sword against the borg. It is better than the other weapons (not try with the whip)
Growing old is inevitable. Growing up is optional.