i have to laugh about 'no need for drawings.'
and then i get serious.
almost every work environment i know of requires some type of inspection. i work in the automotive industry. how could i expect a part to pass inspection, if the people in the quality dept don't even know what to inspect?
for statistical processing, for ppap (required) etc. you gotta have a map to get you to the end of the process. you do that with dimensioned drawings.
anyone who tell you differently is either mis-guided or mis-informed.
that's my $.02