I agree with your point and I for one wouldnt want the kind of homogeneity....but....
Our Continuous Air Lore in its current state IS a weak and much useless version of shield brother.....it has a heal we can give, a damage reduction, etc.....so it is already in the same area of concept....so buffing it up would only make it just what the captain's brother skills are anyways.....so either we not talk about buffing it, lest it become homogenous in regard to class roles or we change its concept entirely....which I doubt the devs would take the effort to do (although I hope they do

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Not to mention, while one might argue homogeneity, there is already a need for it in the current state of things.....and the game sort of promotes it.....the classic example can be Draigoch needing a burglar.....without a reliable FM starter, that raid is almost impossible.....now the solution would be to either give other classes ability to reliably kick off FMs, which in the above context would result in a sort of homogeneity, or remove that sort of absolute need in a raid.....
And despite all the complaining about hunters being given the cc-abilities they have, we're still the masters of it.....for hunters its more of a secondary role which they can fulfill if there is no LM available.....never have I seen a hunter being chosen for cc if an LM is available.....same goes for this concept......buffing is not our field.....but we ARE a support class....might as well have a buff or two ready on hand....not as powerful to overshadow the main class that holds that role, but available at a pinch....like if we get the new skill to start FMs, doesnt mean LMs will replace burgs.....only that no raid will be held up at "11/12 draig....need burg"