The swap system is not new to the CEXs, I think that good for both parties and ultimately good for the users where both of these competitors are gonna try hard to introduce new features to attract more users. The Only issue why still people are sticking to the CEXs is inappropriate information and Network fees.

The DEX trading costs far more fees compared to the centralized trading platform. I've seen maximum users preferring their trading activities on the CEXs and risking their funds custody just to save on the fees.