I think this issue stems from the popularity of general affirmations and meditation videos on YouTube.
Yes, some types of subs will actually fit everyone (RICH, DR, ME and Ascension come to mind), but when you start diving deep into things that deal with very specific things, then the user’s level of affinity for the “archetype” proposed is going to have a massive effect.
And if you try explaining this to any of the YouTube or competitor subliminal creators, they’ll just say “yOu HaVe LiMiTeD BeLiEfS” or “your subconscious can handle anything”. Then they proceed to make k-pop lookalike subliminals and try to change ethnicities 