As a support type player, it is not in my place to say but several skill points could be used elsewhere.
I see no reason why you should reduce heal to lvl 8, this is your most dominant self preservation skill, especially considering we will only have a very low level Highness Heal, it is best to max this.
A battle Hybrid support built AB is very SP starved, but I am saying this is a problem all AB's will face, regardless of skill or stat build. There is no reason to be not maxing meditatio for the max SP% increase.
You need to make an informed choice, since KE and Assumptio does not mix, choose to max one or the other and reduce the skill points of the later. I would suggest reducing down Assumptio to lvl 3 considering the damage reduction is the same at all levels, just the duration is effected by skill level, lvl 3 with 60 seconds is more than adequate. You can even reduce KE down to lvl 8, the extra damage soaking from the last two levels is not worth the investment in my eyes.
Why is Duple light lvl 5? This is a battle build correct?
You need to make a choice, either pick up Offertorium or not at all. Any level lower than level 5 is a waste of skillpoints as the best effect at lvl 5 is the only noticable healing amounts compared to level 1-4. It is also because the amount of SP Cost>Heal is more worth at lvl 5.
Expiatio is a splendid skill as it stacks together with most HardDef piercing cards and gears/effects, this does deserve lvl 5 especially if you are planning on having a battle priest in your hybrid.
Although these are the things i am complaining about, i can however understand where your build is coming from and what it is you are aiming to do with it. Take what I have said as a grain of salt and keep on going, it doesnt look too bad a build if you enjoy it and can somehow gear it right.