Ian answers this question in his second video, which you linked later. He says that FN created a gun that is useless for either duty or competition, and is only useful for plinking. Which, he emphatically proclaims, is a completely valid reason to make a gun.
It's basically the American SIG P210 from FN.
Until the FW videos, I didn't realize that the "new" FN HiPower was significantly larger than the original, especially in thickness. I suppose it cannot compete with SIG P365XL anyway, so might as well dollop some fat in the name of comfort and magazine capacity.