EDIT UPDATE: This should now be fixed.
A lot of incorrect assumptions going on in here. Some clarifications:
- The traditional tutorial being replayable is an intended new feature, as noted in the patch notes.
- It's unintended that it re-starts the new player quests for some users.
- It's also unintended that parts of these quests are broken (and even break other things) when you've already completed them.
We're working on getting these fixed ASAP. We have a possible fix that we're testing now and hope to roll out soon, that shouldn't require any new patch, if all goes well.