Well, Galarian Weezing is primarily based around perfume bottles, british gentelman's top hats and the fairy typing is a reference to leprechauns. Personally I think it's a great design that references GB's problems with smog in the industrial revolution and spins it in a more friendly direction.I hate Galarian Weezing. I love the original Koffing/Weezing line. I wish they would give Weezing a mega-evolution or a third evolution. Just nothing that looks as horrid as Galarian Weezing.
They could easily give regular Weezing access to neutralizing gas.
(Also, Kantonian Weezing has access to neutralizing gas, unlike most regional variants the only real difference between it and the galarian form is the hidden ability). It's also possible to get a Kantonian Weezing through NPC trading in the isle of armor. Whether or not you'd use neutralizing gas over levitate is up to personal preference though, but it makes Weezing a lot more predictable in the sense it's abilities trigger upon entry (except for Kantonian's stench).