Upgrading/Simplifying the healing kit will also be beneficial for newer players. Where going into content not worrying on what to do when Tanks or dps need healing. Especially when their health drops dramatically.

When a Tank/DPS are doing well to avoid mechanics and mitigating, healers can have a more interesting dps kit, so it feels almost rewarding to use their dps actions.
Especially when healers at higher levels have more dps actions and a dps rotation that has a satisfying build up for a very damaging attack.