That's fine IMO. It means that you will heal frequently in addition to Regeneration. Plus you also have heals outside of Celestial Avatar (CA); if you need burst healing and don't have CA ready, just use Staff#5+#3, if you need more use Staff#2, Mace#2, your healing skill, if it's a healing skill with a Water combo field like Healing Spring you can also combo Warhorn#5 & Mace#3 before swapping to staff and burst healing there, and you can target allies with Staff#1 () if necessary. Depending on the boss & group, you can also cast Glyph of the Stars just for its active healing, and with Nature Magic's Invigorating Bond your pet F2 also heals. And finally, a good Druid will know when to delay their CA for certain mechanics such as Vale Guardian greens, Gorseval's cc, Samarog's cc, etc. while still keeping up CA boons. The issue I have with alacrity being on CA skills is when I have trouble filling up CA, which can happen during down phases (for example at AH CM bomb/laser phase, OLC CM puzzles, Xera gliding phase) or on low pressure bosses with an offhealer, especially if it's a barrier healer like Scourge.
how do you feel about Druid's needing to be in Celestial Avatar and using up heal skills to upkeep alac?
That's fine IMO. It means that you will heal frequently in addition to Regeneration. Plus you also have heals outside of Celestial Avatar (CA); if you need burst healing and don't have CA ready, just use Staff#5+#3, if you need more use Staff#2, Mace#2, your healing skill, if it's a healing skill with a Water combo field like Healing Spring you can also combo Warhorn#5 & Mace#3 before swapping to staff and burst healing there, and you can target allies with Staff#1 () if necessary. Depending on the boss & group, you can also cast Glyph of the Stars just for its active healing, and with Nature Magic's Invigorating Bond your pet F2 also heals. And finally, a good Druid will know when to delay their CA for certain mechanics such as Vale Guardian greens, Gorseval's cc, Samarog's cc, etc. while still keeping up CA boons.
The issue I have with alacrity being on CA skills is when I have trouble filling up CA, which can happen during down phases (for example at AH CM bomb/laser phase, OLC CM puzzles, Xera gliding phase) or on low pressure bosses with an offhealer, especially if it's a barrier healer like Scourge.