While it can, with the reputation of EXO as having some of the craziest water behavior around (I have not used it yet), it might be a step backwards as far as hydrophobic behavior (and it`s benefits) are concerned.
I went thru a month or two of maintaining my coated car by washing with Gyeon Bathe+, followed by Gyeon Wetcoat during rinse and, given the excellent hydrophobic characteristics of the base coating, it was a step backwards. Stacking SiO2 stuff can be problematic methinks, sometimes less is more. Just an isolated experience though, everyone has different conditions and preferences and YMMV.