To a point, but it is what has been holding her back as we learned from the Q&A
If they buff Ana, her and Moira with the heal bonus on the Grenade are able to put out almost 400 hps, more than Zen’s ult, with their baseline kits.
By shifting power away from her grenade’s healing bonus, they can now add power to her baseline healing, survivability, and other areas WITHOUT making her too good in too many areas like she was before.
Ana will STILL be able to have a super strong 185 burst heal, but without the worry of making other high healing supports ALSO give huge numbers.
Plus it would ALSO make Ana the highest hps (Landing every shot that is) like it should be, rewarding her rifle aim more than relying on bonus’ and abilities.