How about no? More options = better. Having to burn an enhancement slot isn't always ideal. Having a zero-cost passive or toggle power isn't always ideal either. But the more options we have the better. I really do not understand the pushback here.
If I suggested that all KB in the game be reduced to MAG 0.67 so that it's KD, with the excuse that you could then slot KB enhancers to turn it in KB if you wanted to, with a massive -tohit and/or -dmg penalty, you'd lose your GD mind. So why is the reverse OK?
Sometimes KB is a good thing and sometimes it's not. Giving us the flexibility to control it better is a plus, not a minus, especially since no one will ever force you to use said options if you choose not to.