Carpetmate
Just out of interest have you ever cleaned a carpet yourself? and have you ever done any courses? I suspect not.
Professionals in this industry will take each carpet on its own merits, then decide what type of agitation is necessary (if any) dependent on their findings. Most carpets that are cleaned can safely have cylindrical or rotary agitation without causing problems. There's just not enough speed to do so. Yes, if some newbie or someone who doesnt know what they are doing becuse they've never been trained, who uses some wizzy dizzy thousand mile an hour agitator thats just come out, on a almost new carpet or on a loop or whatever, whatever, then there COULD be a problem, yes.
Why are your guys not agitating either? do they not know how to clean a carpet too? If there were any problems dont you think that professionals would advise against them??
Get real, take some courses, get experienced and yes Brintons are covering their bums (like everyone is saying). Its the same with upholstery. 90% of manufacurers say to dry clean only, when we know that 90% of fabrics can be wet cleaned. They dont want any hassle - GET IT YET?
No disrespect, Im sure your a great carpet fitter.