You're stating the point that I stated, again.
There was nothing in that first film that suggested that mutants and metahumans existed. And if that Fox sale didn't happen, there still wouldn't be mutants. Actually, we don't even know for sure if mutants will br introduced in thr MCU. We're assuming it will happen but we don't know.
But again, you only know and assume these things because you have decades of comics and TV to go on. What F&F is doing is not 'less than' because Dominic Torreto doesn't have a comic book.