I’d say they should add more options to provide teleport actually, if anything.
The problem is that the game is no longer about the main part of the game. When I played back in the day the game was being able to defeat Hell Diablo, and once that was done, you won and it was over.
In that case, yeah, content skipping was stupid, and stuff like Enigma would have been unneeded. But at the same time, once they added in immunities Sorceress needed teleport in order to skip stuff that was impossible to deal with.
But now, “the game” is no longer really about making it through to defeat Hell Diablo, or even Baal. Now its like getting from level 1-75 and defeating Hell Baal is just an introductory step and “the game” starts after you’ve defeated the actual main part of the game, and your just running around doing the same thing over and over again hundreds of times. Off course much of this is in service of pvp.
Given that this is how people play the game now, at least on-line, teleport is pretty essential, because without it, the “post-game” grind would be unbearable.
Yes, if the game were about defeating Hell Ball the first time, and after that the game was over, then of course it would be unnecessary for all classes to get teleport. But when the game is about running the same areas hundreds of times in order to collect gear its an entirely different matter.
Edit: Also, ironically, removing teleport/Enigma would actually increase botting, because then the late-game grind would be essentially unbearable for actual people, so people would just rely on bots to grind gear.
The fact that D2 includes pvp means that there will always be a drive to have “the best possible gear” for pvp purposes. Without pvp there would essentially be no point to 75% of the late game stuff. But if there is going to be pvp, then there is going to be a market for “the best possible stuff ASAP.”
Without teleport/Enigma, it would become impossible for people to put in the effort to get said stuff, which would make pvp more unbalanced because then it would come down more to luck for the few who happened to get good stuff early and it would drive up botting otherwise.