Ffxiv as far as I know is a very popular mmorpg with a heavy focus on raiding. On a mmorpg with focus on raiding there will be always parsers, there has to be, especially if you are going into savage difficulty.
SE decided to not "acknowledge" them, especially to protect its casual community, which is fine, completely understandable, but if FFXIV continues with the same plan of keep up with savage difficulty raiding, then they always will "accept" Parsers as they should. And the ppl that keep saying that "NEVER TO PARSERS" its because you dont do Savage type of content. You need to have it in order to improve, it is a very very useful tool, period.