Well if you want to make that argument there then you’d have to admit that losing the ability to fake Saturn V launches is equivalent to losing the ability to build the rockets…
As if we still had which ever of those abilities we had then they would have respectively continued faking or continued launching them after the mid 1970’s
Maybe we don't know how to build a Saturn V anymore because we never built one? https://swprs.org/the-moon-landing-controversy/ and particularly https://www.serendipity.li/more/myth_of_apollo.htm
Well if you want to make that argument there then you’d have to admit that losing the ability to fake Saturn V launches is equivalent to losing the ability to build the rockets…
As if we still had which ever of those abilities we had then they would have respectively continued faking or continued launching them after the mid 1970’s