Nah. Bush I gave us Perot when he dissed the Reagan Democrats. Perot could not have gotten all those votes on his personality. Perot got votes because voters had a choice. When the voters heard his views in the debates, Perot got votes from both majors. The majors will make sure 3rd parties never make the debates again.
I remember it differently (but we may be talking about the same thing, different reason). Bush (41) went back on his pledge not to raise taxes and that incensed his base who saddled up with Perot to "send a message to Bush." It was those voters who split the Republican vote and gave Clinton a plurality. Without Perot, Bush would have squeaked by and Clinton would have vanished into obscurity.