Guys, I did some research. It says on Moto's website that the Z Play only has A-GPS, but that's the case for ALL of their phones too. Even this year's flagship the Z Force Droid and last year's flagship the Droid Turbo 2 are listed as having only A-GPS. I have a hard time believing that both of those phones lack GLONASS too.
This, combined with Clock's screenshots and experiences with the phone above, lead me to believe that the Z Play DOES have GLONASS, it just doesn't advertise it. In any case, my Droid Turbo 2's GPS locks quickly and works fine with GPS intensive apps like Pokemon Go and bike/run tracking apps like Strava, so I say you guys shouldn't worry about the Z Play's GPS performance.
This seals the deal for me. I'll be getting my Z Play today!