I didn't say or imply that they reward "bad" technique. They allow and respond more favorably to different skill blends than than cambered skis. The post to which I was originally responding implied that rockered ski design made it easier to carve. At least if you are talking about the traditional skiing concept of carving, that is simply not true.
I wasn't making any assertions as to whether carving, whatever you want to call what you can do on ice skates and possibly on sufficiently rockered skis, or turns that cause noticable skidding on cambered skis were better than the others or that any of them are bad. They are all approriate and effective and can be a heck of a lot of fun in certain circustances. They are different from each other and the mechanics of them are different.
What I did say is that you are unlikely to learn effective carving skills and skill blends on wide, rockered skis and you are unlikely to learn how to effectively use the skills and skill blends you can use with wide-rockered skis in 3d snow on a carving ski on 2d snow. Not that it can't be done, just that it is unlikely.
I don't think it makes any more sense to become highly skilled at the edging skills necessary to carve effectively and not care at all about rotary skills any more than vice versa.