personally I think being able to hold down even at 100% and just tech horizontal kill moves is extremely frustrating to deal with actually

I think having a knockback threshold at which it becomes impossible would be a good way of mitigating frustration without outright removing it.

100%. Teching only feels physically intuitive when characters tech onto surfaces they would crash into.
I feel the same way about wall teching on the ledge. Being able to tech the wall after Ranno D-Smash sends you away from it is insane.

“bUt MeLeE hAs iT”
Sorry, could not resist. also think its stupid to tech everything all the time even if you are send away from the surface you are teching.