Engineer
Major
First of all, I don't know anything about aerodynamics. However, as a scientist, I know that there is always multiple solutions to the same problem. The Von Karman ogive and the Sears–Haack body may be ONE excellent example of aerodynamics, but it cannot be the only one.
You don't need to be an expert in aerodynamics. Someone at your level only needs five minutes to fact check MiG-29 statements to realize that he injects much of his own fantasies into his explanations. In short, he is employing by using technical jargon to obscure the truth and throw you off.
Wikipedia has the perfect explanation of what just happened:
Proof by intimidation (or argumentum verbosium) is a jocular phrase used mainly in mathematics to refer to a style of presenting a purported mathematical proof by giving an argument loaded with jargon and appeal to obscure results, so that the audience is simply obliged to accept it, lest they have to admit their ignorance and lack of understanding.