WAR...

[Allyrion]

Well, even if you're being sarcastic, what you're saying is fundamentally true. The raid should always push its tanks to dps the maximum amount of time. The same goes for healers. That's the mark of good players. Regarding DF/PF, that's another story, but I'd rather have a tank in deliverance than in defiance the whole time (looking at you ravana).

I don't see that. You should try to do your best every encounter, but when you're clearing content the most important thing is getting the kill. Securing a kill and killing efficiently can coincide, but it's not always the case.

World first groups and top FCs have their healers and tanks doing decent dps, sure. But you always see them play it somewhat safe side for their first kill. There's a reason for that. Stability is more valuable than efficiency when dealing with the unfamiliar or unmastered.

The mark of the good player is not just understanding how to push their limits, but it's how to do that appropriately with their goals in mind.
Good DPS makes a lot of fights cleaner, mind you. That's true, but tanks and healers are the pillars that hold the party together in stable place.
If you loosen your grip, you have to be sure the pressure is enough and you're not just making the other pillar hold your weight and that it all doesn't come crashing down.

So I don't think dps is some holy grail of being the best.
It's an attribute for better players who know the fights and their own limits well enough to contribute more than their role requires.
It's not just maximum time for tank dps, it's maximum appropriate time.
It's mostly misattributed when people don't know the fights well enough, or the party clearly needs a level of stability instead of efficiency.
Those don't need to conflict, but they can and you need to prioritize one over the other in some cases.

I don't know about you all, but getting the first kill is obviously the most important part of progression raiding to me.
And that's not the point you want to be on the razor's edge of efficiency because that just delays your kill.
It's after you've gotten the fight down, you can focus on the most efficient manner of killing and mastering it.

There's a lot of players that are lazy and don't go above and beyond what's needed of them to help the rest.
There's just as many players who misappropriate this 'dps makes you a better tank/healer' idea when they're not capable or it's not the right time, endangering the party or putting pressure elsewhere.
Even the good players who do it right still need to state it with the qualification that it's not just dpsing that makes you good, it's knowing your limits and that of the fight and knowing where you can push them with 100% confidence (not blind confidence, informed confidence).