It’s not as simple as naming bugs or issues that you can quantify and add to a TODO list of things to fix on GIT. The very essence of what makes WordPress so good has been missed a bit here, the community. With such a community, engagement is key. Personally I would not have added Guten as you did, take the following two statements:
1.
“Hey look at this swanky new editor, you want to try it? Keep it if you like it”
2.
“This is your new default editor.”
See the difference? The first feels more engaging. The second is, well, what you guys did.
Integrating new functionality into such a massive beast like WordPress (whose fur is very glossy and luxurious) is huge and should have been managed a tad better…
Had this problem with a new install.
I have access to the backend so created a new user on the database. Nice guide here: http://www.wpbeginner.com/wp-tutorials/how-to-add-an-admin-user-to-the-wordpress-database-via-mysql/
Then logged in and changed the other password.