Sorry for my delayed response. Yes, I was able to get all the editable basemap layers by installing the data rather than connecting to it. There were a couple of things to note however:
1. In previous years, there was a Basemap.lyrx file included with the installation that was supposed to be optimized for Pro. This year there is only a Basemap.lyr (not.lyrx). Not sure if that will become a problem later on. So far it seems to be working ok.
2. When I first opened the Basemap.lyr file, I was getting red exclamation marks next to every layer. At first I thought it might be a licensing problem, but then it occurred to me that the data source might be wrong. I looked at the source for the data and sure enough, it was pointing to a location on an E: drive. I don't even have an E: drive on my computer. I simply repaired the data source by pointing it to the correct location and now everything seems to be working.
Hope you get it all figured out!