Dynamis is fine the way it is now.
No, it's not. It hasn't been fine since shortly after its inception. The problems are not as serious now due to loss of interest, but they are still there. Was your group one of the ones that was constantly jumping other groups and ruining their plans?

And all you dynamis purists should be happy to know that these changes don't affect the dreamworld areas (yet). So if you love jumping other LSes and minimum 72 hour cooldowns, feel free to go to those areas.