Design of DRK and PLD

[Shurrikhan]

Likewise, MCH and now RPR are both operating on purely resource-gated burst windows, rather than the standard time-gated ones that everyone else has. I think that this sort of design better suits a resource-focused job. It's more organic.

How so? Just because it's more uptime-dependent and might make SkS slightly less shitty (though Hypercharge, etc., more than reverses that effect overall)? Is this limited just to whichever spenders don't oblige use only at full gauge (so, not Apex Arrow, etc.)?

I find it really strange that there's so much variety with dps job mechanics, and yet we don't see tanks really exploring any of them. MCH has an interesting variation on the standard combo system in that Drill and Air Anchor are functionally additional 'combo steps' that pop up at different points in your combo cycle. DRG has a five step combo. There are so many more interesting ways to do combo systems than merely alternating between a maintenance combo and a damage combo.

Similarly, do any further examples come to mind here? I'm trying to imagine from the examples given, but I'm having trouble seeing how MCH or DRG, for instance, vary from the standard.

DRG's two 5-step combos, after all, are just a maintenance (DB-CT) and damage/filler combo, just like any Goring Blade, Storm's Eye, Gnashing Fang, or the like.
Meanwhile, Drill and Air Anchor are just... Sonic Break. They're each just another braindead, keep-aligned-by-firing-and-forgetting-on-cooldown damage CD -- merely GCD rather than oGCD -- that, at best, you may get another use of at inefficiently high Skill Speeds in some incredibly rare fights... if and only if you don't have to hold to align them with raid buffs, likely wasting total damage even then.