You don't get to arbitrarily decide what "regular" means, just because it "sounds like it" to you. By that logic Holy Spirit is "niche" because while you usually have extra MP outside of Req, casting it is a dps loss as the spell doesn't benefit from the slashing debuff. You could say Fell Cleave is "niche", because you generally want to get as high on Beast Gauge as possible for the crit bonus or save gauge for raid buffs and gods forbid you use Fell Cleave rather than Onslaught while Infuriate is off cd and you're at 60/70 gauge. Literally no resource based action is used "as soon as it's ready". Regular just means it's something you do fairly often - which you do with TK if you're playing correctly.
That setup you dislike so much, is what makes it engaging and enjoyable for a lot of people. It also adds extra optimization above "the standard" which some people would love to see in more jobs actually.
Also if you're only using TK at end of RoF, then you're screwing yourself out of a lot of dps.
Making Form Shift ogcd would most likely make it something you want to weave in constantly. I mean, double weaving that shit nearly every gcd. Now that's clunk.
I feel like RDM has potential to be enjoyable for me, because I like the distance switching, but it would need a lot more ogcd weaving and more complex melee combos chained with spells to reach that potential. It would be however very unreasonable of me to ask SE to change it, as big part of RDM's appeal is it's simplicity. Not every job is for you and it shouldn't be, as that would mean there's not enough variety.
I'm afraid that might be you, considering you don't think buffs are part of the rotation.