I couldn't agree more. Remember, this was not some release twenty years after MJ's death, of some random collection of demos. This was a release (laughably) marketed as an album that MJ was working on before he passed. I actually like John McClain's mix of "Behind The Mask", but acting as if it was a song MJ left a "roadmap" for is ridiculous, nevermind the songs I can't actually tell if MJ is singing on.
They should have marketed it as an album of unreleased songs and nothing more. By the combination of releasing the Cascio songs and acting as if this was the album MJ was prepping for release, they did nothing but hurt themselves in the long run. Instead of MJ's posthumous rush of sales dying out on its own with time, I feel they deflated it themselves with the "Michael" album release.