I seriously doubt it as propeller heads usually have no business skills, which is why they waste time twiddling bits to rack up more hours.
Ever hear of working smart and not working hard?
You charge per job, not hour.
Crank it out fast and solid, move on to the next site, and 100% hand editing HTML isn't the way to prosper in that business model.
Heck, I started my first assembly language programming in 1978 using an octal keyboard to type in CPU machine language direct they paid me well for doing it but it didn't make sense to keep doing it that way once better tools came along.
It's ok, while you're wasting your time typing in HTML junk nobody sees in the browser when they get to the web page I'm long since done for the day and sampling another pint of beer. :)