Dude/tte, whoever you are, you have no idea what you're talking about. The only reason people talk about orgasm, is because of the "feelings" of the orgasm. No one is researching orgasm because it's a "release of pent up blood congestion". They're researching it because it triggers an extremely pleasurable sensation, a qualia that cannot be measured by any scientific instrument. You can measure the blood flow, and reflexes in nerves, but you cannot "prove" than ANYONE ANYWHERE EVER (apart from yourself) feels the rush of pleasure that "anecdotally" people "self report" as being what an orgasm is. Are you going to say the pleasure isn't real and therefore the orgasm isn't real? If so that's absurd.

The dictionary definitions of "orgasm" do not define it as a "specific reflex triggered by the nerve endings of the dorsal branch of the pudendal nerve, the purpose of which is to release the pent-up blood congestion in the spongy and cavernous genital tissues, with sufficient force, in the male, of “sneezing” out the seminal fluid for reproductive purposes".

Wanna know how it's defined?

Oxford dictionary: "the climax of sexual excitement, characterized by intensely pleasurable feelings centred in the genitals and (in men) experienced as an accompaniment to ejaculation."

American Psychological Association: "the climax of sexual stimulation or activity, when the peak of pleasure is achieved, marked by the release of tension and rhythmic contractions of the perineal muscles, anal sphincter, and pelvic reproductive organs"

Dictionary.com: "the physical and emotional sensation experienced at the peak of sexual excitation, usually resulting from stimulation of the sexual organ and usually accompanied in the male by ejaculation."

Merriam Webster: "the rapid pleasurable release of neuromuscular tensions at the height of sexual arousal that is usually accompanied by the ejaculation of semen in the male and by vaginal contractions in the female"

Wikipedia: "Orgasm is the sudden discharge of accumulated sexual excitement during the sexual response cycle, resulting in rhythmic muscular contractions in the pelvic region characterized by sexual pleasure."

None of the above definitions limit the definition of orgasm to a specific reflex in a specific nerve in a specific part of the genitals.