I do agree, but other avenues that could be considered is making each oGCD more niche and specific on purpose and not just a button you can press whenever damage happens and it doesn't matter much which. Adding a steep MP cost to them could also make people consider more carefully when to use them instead of spamming them.
Even on the front of GCD heals, there was a reason behind Medica 1 not turning into Medica 2 for example, being 1) it costed a lot less MP and 2) was more efficient instant healing, and since you had little AoE OGCDs to heal anyway, you'd end up having a Medica 2 already running behind and still need to cast Medica on top, so the 1 made perfect sense.
All of this is literally indicative of everything that's been sanded down and made meaningless on healer kits:
1) oGCD bloat rendering GCD heals useless
2) oGCD heals losing their specific niches and becoming interchangeable
3) MP becoming irrelevant in the choice of the tools used to heal