When I was a young apprentice baker, the hygiene was most certainly lax. By the time I gave it up 10 years later it had fairly changed.
A good few of the bakeries I listed gave it up as they couldn't be arsed adapting to the new regulations, some of them just never had the space to carry out the changes. Some of them as basic as giving the bakers a toilet to use, instead of having to go outside to use one or hud it in.
The thing is with flour is that you can never stop it lying about.