Healers doing damage in Final Fantasy mmos are a primary mechanic within the MMO series and the franchise in general. If you did end game in FFXI, this was present within SCH/RDM and even WHM. Dancer was in fact a DPS/Support Healer. Just because you have an issue with the developers intentions when it comes to healers in FFXIV does not mean its a problem on the development side of things. It's an intended mechanic for healers to be able to push for damage if they are skilled enough or if they are able to.

The tight hard enrages were only a real issue in Savage Gordias (and they've already owned up to the mistake of their enrages/dps checks). That's not really the case unless your dps were below average in every other raid tier.

If the availability of cleric stance bothers you so, there are other classes within the game to try out. I don't think anyone should play something they don't like. It defeats the purpose of playing the game.