Any other palis have this issue

[ShaneDawn]

Can you play your job unoptimally? Yes, you can, but I wouldn't necessarily recommend that. Bad habits die hard and all.

It is the healers' job to heal. By spending several GCDs healing yourself you are giving a direct vote of distrust towards your healers for doing their basic job. Also in case of Charybdis+Roar; even if you survive the mechanic due to healing yourself, other people are likely to die due to there not being enough healing, and it's very likely the healers as well. So you can just honestly refrain from doing Clemencies with aoe follow-up mechanics and instead make sure you are in range for heals (cure III especially).

Using a Clemency to save yourself when the healers are dead/struggling. Yeah that's reasonable.