Yeah but... I think the concern to find a highly sought after DPS is pretty valid...

I've been locked out of raiding across several MMOS for the past couple of years because... oddly... I generally only play tanks. And it turns out tank is the LEAST sought after role... because it is the most... as in... people fill their roster by getting tanks first. And they go to their friends, their FC leadership, or themselves (tanks tend to be running the raid). If you're a tank out there shopping for a group... chances are they already filled your spot before they made their recruiting public. Over in WoW I kept finding they'd filled to spot 10+ years ago...

(It is the reverse of the dynamic in dungeons)

I see this also with DPS in various raids... if you're on a class or job that is saturated (more people play it than the current meta needs), you only get to raid if you have a buddy who is a raid leader... or you have the charisma to start one and get people to join you. That said... DPS have an easier time getting into a raid than tanks - because more of them are needed and the competing players often include a lot of people who will fade away over time - spots open up. If a raid loses a DPS they replace it. If a raid loses a tank the entire group often breaks up before I can find it and apply...

(That's kind of why I'm working on my DPS now here... but posting with my tank because the DPS are not yet leveled)

So... people's specific advice about playstyle is one thing... but if the community has a consensus that 'nobody needs any more X, but we need a lot more Y' - that's advice worth taking.

Nothing is worse than spending months getting all ready, and then finding you can't get a spot anywhere because your niche is already filled...