Would you like an in-game parser?

[Reynhart]

Care to explain?

No, I don't, and that's exactly that, I don't care. Did we win ? Yes ? It's fine. No ? Bad luck. Did I see why, can I explain it too the team ? Yes ? I'll do it. No ? Never mind, I'll try another time.
In fact, that's what happened yesterday. For once, the bonus was for DPS in the trial roulette, so I took my BLM, by I ended up in Sephirot, which I've never done as a BLM...since I basically stopped playing BLM as soon as it reached 60.
Was I bad ? Of yes, I was...I could tell I was. Were others bad ? Yes, some of them made mistakes, yes. We wiped twice, we talked about strat, priorities, etc...and then we won. Yes, my roulette took more time that it should have, so what ?

You are right, a parser doesn't tell you what you did wrong, it tells you that you need to improve however which MANY are in denial for, so a tool that are on their screen will tell them to get gud and they will soon or later realize how bad or dead weight they was for a group.

Actually, if the tool is on their screen, they're not that much in denial. But here the tool is on your screen, not theirs.

There's a difference between knowing the path and walking the path.

A guide gives you knowledge of the path, practice is walking the path. A parser only tells you that the path you're on is wrong.