A couple of things:
First of all, prog doesn't necessarily have to be technical. Just think of Pink Floyd (one of the eminences of prog, and David Gilmoure has said a lot of times he sucks at guitar playing). Don't blame prog for being wankery and show off, because that is only a characteristic of the person composing/playing. Allan Holdsworth plays insane guitars really often. Can we say all jazz players are all insane guitars? John Cage makes (IMO) horrible music. Can I say all that all contemporary composers make horrible music. Surely not. Don't "blame" a style for some of their bands defects.
Second: I read lots of posts saying that genres don't matter, music is what matters, etc... I won't say it in my words because I am a disaster explaining myself, but I'll use an analogy used in a prologue to William Golding's Lord of the Flies (I can't recall the name of the writer, but it doesn't matter) "Imagine you go to the countryside. You need a map to guide yourself through the countryside. The fact that you have come to enjoy the countryside doesn't make the map any less necessary". Music genres are useful a lot of times.
Third: Progressive because of keyboards!?!? Why are you entitled to a music genre because of an instrument you use? Sure, you can say most (you can't say all, because they aren't) prog bands use keyboards, but that doesn't make the use of keyboards progressive. Chick Corea uses keyboards in his Elektric Band. So does Scott Knisey and Lyle Mays. Stratovarius and Sonata Arctica use them too. Are they prog? Surely not. I'm sorry, SXJapan, but your description of prog is the most superficial I've come across.
Peace...