Preventative spraying is required to have pest and/or mildew free buds because all places have their issues. Even if your indoor environment is perfect it's still possible to bring in pests or mildew. You have to do preventative spraying. In California indoor growing is an obsolete business model due to electricity prices. The amount of environment control you have to run costs more than top quality bud is worth. Same on the whole west coast.
The people doings this b.s. In Washington are purposely making growing standards next to impossible for the purpose of driving out small growers and gaining monopolies so they can then drive the price back up. They invested huge amounts of cash into obsolete and inefficient infrastructures that they are stuck with. The only way for them to do this is crush small growers. They know bud rot, molds, and pests are an issue up there. They know they can make the small growers fail if they make preventative issues un preventable with regulation, and hide it under the guise of consumer protection.
Meanwhile they will pay off officials and cheat until they are the only ones left. Then they will loosen regulations when they have monopolies and fuck consumers the other way.
Sounds like par for the course here in America... Which is a bummer