WHM getting progressively more unnecessary in content?

[Bourne_Endeavor]

snip

This works better in theory than execution. A Monk doesn't DPS enough over a Dragoon to warrant the lost raid wide damage by not having Disembowel and Battle Litany. You may actually lose DPS overall because of that difference. White Mage suffers a similar issue. Nothing hits hard enough to warrant dedicated healing, thus Astro and Scholar can mitigate everything just fine while bringing vastly superior raid utility. Neither Monk nor White Mage are bad per se. They just aren't optimal for content right now. Monk needs to do slightly higher damage to justify bringing it over Ninja and Dragoon while White Mage needs to offer something else besides healing, unless content requires more dedicated healing.

Groups will still clear, absolutely. You'll just see large discrepancies on job preference. Last I heard, Dark Knight clears outweighed Paladin in Savage by over a 3:1 margin. The concern becomes longevity. As more people gravitate to the "better jobs," the less you'll see of those suffering.

[Yeol]

...

This is exactly my point. DRG will bring more dps due to their utility.

Increasing MNK dps to make up for their loss of utility is a very bad idea.

As for WHM. They are already good at healing and dpsing.
Sadly, they cannot do both at the same time at endgame because it eats up their MP. AST and SCH have no problem with doing good dps while healing because MP is no issue for them.

In dungeons WHM is superior because they can heal and dps at the same time due to having breaks between pulls that helps them get MP back.

All WHM is missing is a way to get MP back.