You clearly haven't grasped their argument.
They acknowledge gravity as. Fact but dismiss Newton. Gravity is a force that science "cannot explain" it acts on all surfaces equally, round or flat...we just can't explain it.
Oh Christ, I need to sleep.
Maybe the earth is flat. Who gives a flying shit.
I just wish that I had enough hours in my day to spend trying to prove we live on a frisbee with portals at the edges rather than the round earth bollocks I have to deal with on a daily basis.
Give me a flat earth and no worries. I'm a happy...