>Arguably this difference is what caused Coconut to be made in the first place.

Sure, that and it's far easier to write a new language and transpile than it is to fork and modify existing implementations.

>There's ample discussion on these topics to simply brush existing decisions off as "Incompetence? Politics? Both? Who knows."

If you would like to link to such discussions I would not hesitate to add them as footnotes/amendments.

>For the fifth point, `list.index` works fine in Python 2 and 3 for me.

Sorry, mixed up `index` and `find`. `[].find` is not a function, but `[].index` is. Thanks for catching that, I keep confusing them (another minor annoyance of having both).