This week i got a +5keystone from my class hall chest (completed a +7 lastweek). essentially taking the oppertunity for loot on mythic +2 +3 and +4 from my(and my entire groups) keystone of the week. of course i can and will run other peoples, but why force that? i guess it saved my "progression" about a hour time and 2 runs, but i wont trade my loot chances for that if i had a choice...
Also ran a depleted lvl 2 keystone, we figured if we did it really fast we would still get loot for mythic +3 and +4 and recieve the upgrade lvl 5 keystone to then use again. instead the keystone leveled 3 times to a +5, and we still recived no loot for mythic +3 and 4 we skipped by going fast. so we got punished for not taking a nap at the end of the depleted +2 and then running the +3 keystone we would have got, instead of a +5.
both situations seem like absolute nonsense.