What are the most common reasons people don't dps?

[Vyriah]

Shinryu Ex

Yeah, healer DPS on Shinryu, entry level kind of shit. Wonder why those guys don't do DPS on that high, constant healing requierement fight with a mechanic especially designed to draining healer MP.
Those player arn't lazy, they're certainly struggling with the fight. I wouldn't be surprised that most of them just do low DPS because they're focusing too much on mechanics. I dropped SCH for that fight because I was doing the other way arround : trying to DPS only to lose the flow of the fight.

That asks for more awareness than extra DPS anyway. Nothing surprising. Same thing happens on O4S where healer DPS tend to became much lower.
Still about how the game is design, not how the other are doing. The only reason you're telling me this is because you're using a parser, something that's not originally suported by the game. If you're using it to improve yourself good for you. If you're using it to monitor the other player, you're wrong anyway.

If you're farming wolf, echo and stronger gear is gonna make that fight a joke anyway. I'm not sure why anyone is bothering with this yet.

[Jollyy5]

Wonder why those guys don't do DPS on that high, constant healing requierement fight with a mechanic especially designed to draining healer MP.

Now that you mention it, many of those said co-healers aren't using their mana recovery skills correctly.

You'd be surprised how many WHMs seem to be unaware that Thin Air is a thing, for example.