So... This is the "improved encounter design"?

[Shurrikhan]

I do think it's reasonable to expect melee to be able to maintain 90% or more uptime but in savage it shouldn't necessarily be easy to do or even obvious where to position to do so. That should be part of the job difficulty.

So long as the same is pretty consistently true for casters' casting and whatever unique role-thematic difficulty physical ranged bring to the table, I'm all for this.

*I'm assuming here that you mean "melee uptime" or "effective uptime" (where our fallback ranged attacks contribute only proportionate to their damage relative to what could be done from melee).