So if I'm understanding correctly, you're saying don't acknowledge the bad behavior? If that's what you are saying, that's understandable, I know a lot of people who do that and it works. It's like the "positive" training method where you focus on the good and not the bad. I focus on both just because I think they both need to be addressed, the good and bad, but there's a lot of opinions out there. My horse gets a lot of lovin too :)
Essentially, yes...I really don't see the point in clobbering a horse between the ears for rearing, when you should be asking yourself, why is the horse rearing up? A horse will rear when he feels there is no other option BUT to go up...whether that's because he is being given mixed signals, or is sore. Same with bucking...if a horse is bucking, or offering to buck, disengage that hindquarter, and get him moving...he can't buck (as hard) if he is having to move his feet. Too many riders just sit there and kick the crap out of their horse's sides (and wonder why the horse winds up bucking), instead of remaining calm, and getting the horse simply to move. Does this mean the horse learns that bucking and rearing are an option, because you aren't quote unquote acknowledging it? I don't think so, because he's not a malicious sort like people can be...if you ride him out of those behaviors, he just going to go on like the spaz incident never happened, and go about working as you intended. I think it's in 'fighting' or otherwise underthinking the horse, that we get ourselves in trouble.
Are bucking and rearing, and other behaviors unacceptable? Yes, but how you deal with them can determine whether the horse does it again...sometimes 'discipline' is not the best route to go, imho.
The mare I have now, was 'sold' to me as unrideable, because she was a bucker; I never once have 'addressed' the bucking issue; instead I redid all of her training like as if she was never ridden before...2 weeks after I got her, I rode her...no buck, no bolt. She can get goosey at times, but I simply get her moving out harder...she has not actually bucked on me ever, but I think that's in part to how I act on her reactions. Now if I had simply tried to climb on, and 'discipline' her out of it, I would probably be in the hospital, or dead...you have to think smarter and safer than your horse, not simply try to out muscle him.