Turf is horrid and hard on the body, huh huh. I never had feet issues until I started exercising on turf for hours at a time. I see others with knee and back issues as well.
Thin layer of felt that sits on top of shredded rubber that is not super compacted, which is on concrete. It also gets about 10 degrees hotter during sunny days, it's honestly like a sauna releasing heat upwards.
The main benefit is low upkeep cost and excellent drainage. Most turf fields are actually angled 2+ degrees away from the center with French drains underneath to mitigate flooding and water damage.
Grass requires year long care, but is much gentler on the joints and feet. I'm guessing the owners are not thrilled with Kittles petition.