Why not just rewrite it as Misty Step. The problem with reflavoring is that you will endure income situation where it matters whether you could get there "using normal movement."
Misty Step: once per rest you may teleport to any location you can see within Close.
Because they don't want DH in the open. They want to let people support it while maintaining ownership. It is similar to the Shadowdark license or the Dragonbane license.
Core Shadowdark is already weirder than the same old Keep on the Borderlands stuff most people seem happy to use it for.
People should, of course, do what they want. I just don't see the appeal in yet another cellar full of rats.
I still think people should get weirder with Shadowdark than they generally do.
Rats and goblins and skeletons, oh my. Boring. The rats should be inside out and cause gelatinous fever. Goblins should be marauders from the moon. Skeletons should be wicker men full of lilliputians. Or whatever...
Or, showing that it isn't some completely alien experience will make it easier to convince folks to give it a try.
In a perfect world, there would be Umbra but also something more deeply fun and narrative. Maybe get Mulligan to run Beast Feast or something? Are there streamers well known for...
And you are interpreting "exceptional" as "completely different" which makes no sense.
Exceptional means above the average, a difference of scale, not kind.
I honestly don't know what your argument is, given that.
I agree with @Arilyn here: the "5E style GMs" will still have successful games, while moving toward fiction first play at their own pace. Seeing Mercer do his thing with DH is a good example in that regard.