Oh well, I do not know why people do not want to hear what they do not like to hear
If you are a pro and shoot several hundreds of 8x10 sheet films every year, why do you want to take the risk of doing something the manufacturer does not want you to do? You do not want to find out in a hard way that, in 5 years or 10 years from now, that some of your films are ruined because of your processing.
I remember the discussion on skipping film stabilizer with C-41. Again, why taking the risk?