Ejaculation is different from orgasm. I ejaculate one time a week, when I have 2-3 ejaculating orgasms. At other times I orgasm without ejaculation. The amount of “dry” orgasms varies.
A guy that is multi orgasmic (can achieve multiple orgasms in one session) WITHOUT ejaculation needs at least one ejaculation to keep his penile system healthy. This has nothing to do with PE but everything with becoming multi orgasmic.
If you don’t mind, why the limited number of ejaculations?
I have read (I think) that you don’t believe that masturbation had an effect on gains. When I read this (if I am correctly attributing that to you), I assumed that you were referring to masturbation ending in ejaculation. Do you believe that ejaculations, which would obviously be different than masturbation without ejaculation, as that would be edging, are an obstacle to gains?