I totally agree with what you are saying, however, to constantly be bombarded by some that think it is a crime against nature is just not being very realistic. When animatronics first were introduced they were jaw dropping. No one had ever seen such a thing. But, that was then and this is now. I'm sure that for at least our life times (well, mine at least) they will still be there. The realness of some of them, like Captain Jack in Pirates is another jaw drop in my mind, but, the projection in Jacks other show in DHS, is equally jaw dropping in it's reality look.
I usually refrain from thinking about how Walt would have reacted and with some degree of confidence, I think he would have embraced it and unless he could build an animatronic that was absolutely life like, would have let that be part of the past while he looked ahead to the future.