As a huge fan of jazz and fusion, I can tell you that mediocre fusion bands are a dime a dozen. How many fusion bands feature a Jaco clone? Too many metal guitarists (or guitarists with metal chops) playing fusion these days too. I like Planet X, Derek Sherinian, Virgil Donati, type of fusion, but it gets old quick, but is great in small doses. Actually, Derek's best album is Oceana which is more jazzy, in the 70s Jeff Beck way, than his other output, and he more or less dropped the mixed meter heavy metal, coincidence? Tribal Tech did that kind of fusion first, and better. TT is more musical, but they get complex a lot too.
However, I can go on and list many albums from the late 60s to present day that feature strong melodies, funky grooves, well composed sections, and isn't technical for technical sake.