But allowing the BASE game to remain completely unplayable under any queue is unacceptable.
You should've done this from the beginning:
1. Put servers into emergency maintenance.
2. Roll back patch to 9.13
3. Delay the TFT tournament.
4. Issue an apology.
5. Fix the patch.
6. Upload a patch that does not break your base game.
Obviously you're not going to give anyone compensation nor will you create any enforcement of PBE bug reporting for this crap and you probably will skip step 4 as well.
Regardless, this patch wasn't just unacceptable, **it was not immediately rolled back in the interest of a secondary game.**