>>32936323It doesn't. Gamefreak has never managed to actually make unique water routes that don't devolve into the same 3 Pokemon the entire game.
The more water Routes a game forces you through, the harder it is to ignore. It's obnoxious in RSE because the entire end game is water routes. It wasn't as bad in DPPT because you only need to go through two water routes midway and at the end of the game.
BW is probably the only mainline series where you ACTIVELY had to go on Water Routes or even find water Routes.
XY tried as well but you basically had inland water Pokemon and ocean water Pokemon. It needed more depth.
SM returned to the fucking "hey what if we have 2 set water types on almost every route and then 1 special one"
Least to Most Obnoxious Water Routes in Pokemon
Kalos > Unova > Sinnoh > POWER GAP > Kanto = Johto > Alola > Hoenn
