It’s odd since they don’t seem to be doing that for other healers. If they were removing more of them I’d think it was about shifting responsibility for interrupts due to more healing globals being needed. Maybe they’ll remove more of them in a future build. It is just the first alpha build.
This time may be different because they’re not just changing damage or healing numbers. They’re removing cooldowns from everyone, not just healers. Part of accomplishing what they want involves removing some of the survival tools the other players had, which they seem to be doing.
I haven’t looked at every class but using Monk as an example, dampen harm is gone, diffuse magic just modifies fort brew now. I’d guess they are doing something similar to defensives across the classes.