For ME and MY quilts...I do feel like robot quilting is "cheating" a little bit, because it's not something I'm doing myself. I don't send my quilts off to be long-armed for the same reason; that'd feel like "cheating" too.
I don't think there's anything wrong with it and have no objections to it (in fact I think robotic anything is awesome; I love robots!), it's just not what I generally want to do on my own quilts. I take a lot of pride in my quilts when I make them entirely myself start to finish, and having outside assistance from another quilter (robotic or human) takes away a little of that pride. I don't even like using patterns for this reason; I'd rather reinvent it on graph paper (sometimes with some changes, sometimes not) just so I can feel that much more "possessive" of my quilt. If I had easy access to a robo quilter I probably would use it sometimes, but I would feel less attached to those quilts. (Just because it feels like cheating doesn't mean I'd never do it! LOL)
Other people's quilts that are robo quilted don't bother me a bit. I can spot the difference and if I'm comparing two nearly identical quilts I WILL be more interested in the one done manually, but I don't dislike or have any objections to people choosing to robo-quilt. Kind of like machine embroidery - I like the end effect, but if I were comparing two nearly identical embroidered pieces, I'll be more impressed by and interested in studying the one done by hand. And when I use machine embroidery in a quilt I do feel like I've cheated a bit. Not that that's all that easy, either, as I have discovered!