They do in this very game, even. Battle Tower is holding the relatively good & acceptable replacement moves Mystical Fire, Giga Drain & Razor Shell hostage.
So, hey, turns out that Razor Shell, as a TM,
sucks.
I wrote this on teh assumption that oh, this is the "easy" replacement for Waterfall. Weaker, but still strong, physical water move where they'd shift from "shell" to "slash" in interpretation
Turns out that
no. There are a whopping TWO pokemon that learn it, Mew & Escavalier, who did not already learn it. Everyone else not only learns it naturally, they learn it around the early to mid 30s so I cannot fathom why this is a TM at all.
If we look at the Home TM/TR list even that doesn't help. Kabutops, Slowbro, Slowking and I think one other; and this all assumes they
also don't just learn it naturally in their new learnset!
I am pretty sure no other TM in this game is like this.
why
---------------
WHILE IM HERE
I was rattling around the idea of an all pika-clone run of XY or SM and looking at movesets, bringing forth the reveal that Dedenne still does not get Dazzling Gleam, even two generations later.
OK so, did you know? Fairy types almost always get the moves they want. Special attackers get Moonblast, Dazzling Gleam or both (& often others!); Physical attackers almost always get Play Rough. Tapu Bulu & Tapu Koko are the one exception to the latter; they didn't get Play Rough in Gen 7
but the TM/TR list shows they get it by TR now.
However, they also get Dazzling Gleam.
In fact
most fairy type pokemon will get 2 out of three of these, thanks to TRs especially, even if they have no business having them. Many even get all 3! This applies to every single Fairy type Pokemon
Except for Dedenne.
Dedenne is a special attacking pokemon (81 special attack vs 58 attack) and the only damaging Fairy move is Play Rough. In fact the only other fairy move it learns is Charm. Even in the TM/TR list it doesn't seem to get any special attacking fairy move.
It's not like you can even blame this on dedenne being a pikaclone and them being bad. Emolga's not fantastic but can get Acrobatics, Aerial Ace, Air Slash and an assortment of Flying status moves like Defog, Roost & Tailwind. Togedemaru had to wait a pair of games but USUM gave it Iron Head & Tail. Morpeko in addition to its 120 BP physical move that switches between electric & dark every turn gets, like, every dark move it could ever want except Night Slash.