Say, for example, you are correctly blocking all your opponents pressure. But you are being punished for blocking correctly because GUARD CRUSH. You are at the limits of your Guard Power Gauge, they knock you down, and perform an EX Shoryuken or something similar on your wakeup. That's free chip and Guard Meter. All this because of GUARD CRUSH.
On an unrelated note, and hopefully Vega makes it in, I hope he doesn't retain that stupid lose your claw/mask crap, or at least not lose it when you're blocking. Why get penalized for blocking correctly?
If they must add Guard Crush, then they must also add parries. You need to give people an alternative to blocking, and back dashing and such doesn't always avoid everything. I'll finally try to get good at parrying if it means I have to escape situations where it would be next to impossible to escape without parrying.