This reminds me a lot about the creative writing process according to one authority, where he encouraged aspiring authors to keep writing and discarding favoured creations (called horribly "killing your babies",) until they are both better practices, and a truly outstanding story candidate emerged.
On the other hand, that suggestion is likely just confirmation bias. ;P It's entirely possible that no outstanding candidate would emerge, and all the aspirant ends up with is a pile of papers on the floor.
I guess what I'm saying is to not take too much weight on the negative aspects. Remember that for every bad sequel like the Star Wars prequels and SupCom 2, there are also good ones like Skyrim, Terminator 2 , and the Dark Knight Rises.