I can't say for sure, but if i had to take an educated guess and make an uneducated assumption, then i'd say because most producers start off with pirated software. The most readily available beat program is FL studio on PC....it just happens to be the easiest to learn.
Then once producers start earning money, they decide they want to buy a DAW, why not FL studio? They already learned the pirated version, and the store version is alot cheaper than ableton or logic, or even reason. Just my theory.
There are other producers who use pro tools like noah 40 shebib or jake one. Then there are other big name producers who use reason like Key Wane and Timbaland. Logic uses Ableton....funny you'd think he'd use Logic
But yeah, whatever you feel comfortable with.