"Fully-charged Heavy Attacks will be more important with the resource changes coming in this update, so we want to make sure there are no gameplay barriers to using them."
Can we make this an option / toggle rather than just the default? If the goal here is to remove gameplay barriers then I don't see a reason why players should not be able to decide whether or not they want this to happen. For most fights I actually prefer to leave a heavy attack charged and then fire it as soon as the tank pulls.
This change also pretty much killed builds like this:
https://alcasthq.com/stamina-dragonknight-burst-build-pvp2/
And I'm not sure taking anything else away with this patch is really a good idea at this point.