Didn't you just make the claim that such mutations were intuitively obvious? How is it "obvious" that Every mutation, "neutral" or not, will be successfully propagated?
Do you think for one minute that if a life form gets a mutation, that it is automatically protected by Darwin's Angel, will attract a mate, and that it will successfully breed offspring?
What part of 100% are you having difficulty rectifying with passing on a mutation, "neutral" or not, take your pick, and HOW is that "obvious" to any rational mind?