I get why they had to fix it. A bug like that would become expected, and you don’t always know what other areas of your game it might affect until you look into it. That doesn’t change that I feel they made a mistake in fixing it as they did. Blizz absolutely needs a player feedback win now more than ever & this buff they stumbled into was bringing it to them. They would have been better served to find the source of the bug, mention to the players that you would fix it before Wrath Timewalking, and let people explode into BC dungeons this weekend.
There’s a lot about this that frustrates me, but I feel the most depressing part is that I don’t trust the dev team to take away any good lessons from this. What we saw was that players are still very interested in leveling alts, but that they don’t like the way Shadowlands does it. The quicker speed combined with other format led to a burst of players leveling alts. If Blizz is paying attention, this should show them that the market is there & that giving an improved way to level alts would do them a world of good.