"some people" would be me, right? But I'm not arguing that. If you look at my numbers they don't indicate that Perot would have been successfull. I had to give him 14% before anything serious started to happen, and even so, he didn't impact the actual outcome. He finished third everywhere except Maine, where he beat Bush by the smallest of margins.
He may have beaten Bush by the closest of margins in Maine, but Clinton still carried the state. So a stronger showing by Perot would only have meant that Bush still lost the state, only by a wider margin.
I looked at the election results from that year, and I didn't see a single state carried by Bush in which Perot was close to Bush in total votes. So I don't think that Bush would have faced a Taft-style humiliation, even if Perot had stuck it out in the race and not made the crazy comments that he did.