Welcome aboard JCSalomon!
There?s people who can answer this question better than I can, but I don?t think Barrie ever changed those plot points that you mentioned.
Though Barrie?s Peter Pan will always be the best of course, there are story problems. Actually, for me, Hook finding the Home Under the Ground by accident doesn?t bother me, what does bother me is that he does not attack the house until towards the end of the play! Why would he wait? Why didn?t he and his crew attack that night while the Lost Boys and Peter (and the Darling children since they would have arrived by that point) were asleep and kill them all?
I saw that you read my post about my Peter Pan stage adaptation, and in my version, I changed Hook finding the hideout until much later in the story.
Also, I think in all the versions, the play, 1953 film, and the 2003 film, Tink does not interact with Peter again between the time of him banishing her and her saving him from the poisoned medicine. Though I could be misremembering something.