Cause they're made for a variety of vehicles that use the same panel, so instead of having a selection with holes in different places, they just make one and you drill to suit. It's nerve-wracking on a freshly painted panel, but you just have to grit your teeth and make a pilot hole. My GT6 panel didn't have the hole for the fuel pipe either, so had to drill two in mine, one almost an inch wide. In fact, looking at photos, I've remembered it needed a third for the spare wheel bracket...