DJ’s use direct drive tables because they can physically turn the platter backward, which can’t be done successfully with belt drive.
None of the DJs turn the platter backwards, they turn the record on the slipmat (felt mat) any directiron if needed (it's called back cueing), but the platter under the slipmat always turning forward, not backward. And a high torque is needed to cartch the right speed immediately.
Not all of the Direct Drive have such a high torque like Technics, for example my Luxman PD-444 has much lower torque.