
Originally Posted by
Mikey_R
The thing is, honing ones own skill can only go so far in clearing content. You can be the best player, but if the other 7 aren't pulling their weight, you aren't going to clear (only talking about EX+ content here). You know you are good enough, you have done these challenging dungeons after all, however, you don't know where the weak link is in the party that is preventing the group from clearing.
Going further. If you made a PF and it couldn't clear the fight. How do you know who is being the weak link? Noone died, noone messed up mechanics, so it is down to rotation. However, you can't keep an eye on everyone whilst doing your own rotation AND focus on the fight to work out who isn't doing their rotation properly (this is assuming you have knowledge of every job's rotation in the first place). So, what do you do? You can disband and start again, leaving RNG up to chance to get a new group of people that can clear, however, if you have a parser, you can see where the weak link is and just replace that member, saving time for everyone. You can also tell that person, look, you aren't ready for this content, get better and come back later.
As I have said in the past, you can tell where people mess up and who messed up, except in the metric that matters most.