I don't agree with the one buttons rotation.

If its just the basic 1-2-3 to 1 button, Fine. But if they implement it so you automatically also press the buffs/heals/shields it would ruin the game...
I would honestly fall asleep while playing the game then and just quit.

I do love some accesibility but we already have a nice amount of easier to play Jobs with not much button load like: Summoner, Picto and Viper.