As usual, "taking over the scrolling" causes issues - in this case, the page is difficult to access using Firefox for Android. I usually can't get to the information at the bottom of the page (it worked once, don't know how)
There's a writers maxim, "murder your darlings". what they mean is that a work often has some styling, phrases, exposition, even whole characters or subplots that the writer has worked hard on and become attached to, but that detract from the work as a whole. So they have to be removed. I think this may be a darling unfortunately.
I abandon all sites that override scroll because they're too frustrating to read.