Simple concept, even though I know it's not going to happen. At least issue a Lesser Heart with each major game mechanics overhaul. This would be a really bold move that would be good for Turbine's image and would dull the pain and criticism of these huge updates.
Keep the multiple day cooldown in place of course. Character builds are a really big feature of this game and opening them up like that would be a smart move. Get people more engaged and give them room to maneuvre.
Let us play with our toys properly, this trend to force us to buy a fix in the DDO store after every update that completely breaks the pre-existing game mechanics, is quite frankly getting to be a bit cheeky and obnoxious.