Look that list over very carefully. They pulled a fast one on you. Mohammed is listed several times with different spellings. I suspect if you add up all the different spellings you just might get a number one slot for mohammed.
If +/- 3% of the population have only one name (with its variants) to choose from for their male firstborn, but the remaining 97% have n000 names to choose from, it’s hardly surprising that the first is over-represented in the statistics.