Good for you speaking to people who own a pan convertor tool and clearing up the possible chance of pet hair. Did I say that?? NO.
The mere threat of high suction on upholstery, especially sofa cushions doesn't just get sucked up into the chosen used tool as Chris says, but also it can pull the fabric apart from the generic shape of the cushion and thus cause bunching up, which then needs to be stretched out again to retain its original shape. If the fabric has been stretched out too far by the force of suction, you can't always re-stretch the fabric to make it lie straight, again. Once the damage is done, that's it done! But it really depends on the fabric in question; I have ruined velour cushions in the past by forceful high suction.
The Miele upholstery tool is a good one compared to many other brands, but I use SEBO's tool whenever I can on my couches - the bristles are far easier to take off any excess threads than having to wipe the lint pickers clean - plus Miele don't always make replaceable lint picker sticker types for replacement when the edges start to fray - and they do start to fray if you rely on that kind of tool all of the time.