Yeah, I think there's a ton of room for FT8 if it can break out of the auto-programmed sequence, I hate that part too. I really wish it would do progressive decoding, it's possible in theory.
Over in the SOTA community we're looking at a few potential solutions. There's nothing in the core FT8 spec that mandates the standard QSO exchange and there's support for free messages(at a max of 13 chars).
As someone with a KX3 I think anyone running more than 10W is at a huge advantage ;). You're right though, the right way is to split the awards by mode/type. That said I find the content stuff just as impersonal and find the relaxed atmosphere of SOTA much more appealing.
That's what makes ham radio so awesome though, it's all fair game. I just hate to see people try to squash things just because it's not the "old way". That part seems really counter to the experimental nature of the hobby.