Humor requires an element of "truth" to be funny. Or at least what the listener understands as "truth".
For such a statement (about the spontaneously morphed ape) to be funny, the listener would have to have a very inaccurate understanding of what evolution is.
Unfortunatly, there may be a great number of those kinds of people. Our science education has been about as bad as it can get.
Yes evolutionists insist you have to 'understand' their theory. It wasn't spontaenous because it took a very very very long time and lots of really really wacky random situations. One day ape. One day latter cave man. There's not much more to understand than that evolutionists have observed similarities in man and similarities in ape and ASSUMED they must have once been the same thing.