>>42152534They make a TON of periphery improvements that are mostly for the better, but they cut down most of the dungeons to one degree or another, axe everything Emerald added bar a couple of tunes, and are hollow easy on account of topping an already easy game with 3 generations of power creep in your favor. (Though point number 3 was unavoidable, really). The previous remakes didn't need to cut those things to have box art blurbs to spare, but apparently with ORAS it was one or the other.
People debate back and forth based on what parts of the package they value more, Frontier verus QoL., etc, and difficulty overhauls let ORAS's extras become more useful more quickly, but that only emphasizes that ORAS wasn't the "complete" Hoenn experience it by all reasonable expectation should have been.