You can check the past threads for that rumor, which is now repeated as a truth, but I doubt it very much - I have both.
Lee Valley says they buy American made twist drills and put a brad point on them. They look like Vermont American brand to me, which used to be closer in quality to WL Fuller but have gone downhill a bit since Bosch bought them. Morris is also close to WL Fuller but they are a bit more oriented toward drilling machinery in a production setting than regular drill bits. I have no doubt that the Lee Valley bits would be considered fabulous for most serious hobby woodworkers and most professionals BUT the OP said he wants the best solution to drill 2500 holes of one size.
Also, WL Fuller makes a wide variety of drills, which is why I suggested contacting them for their recommendation for the exact drill they suggest for your material and specific job. They are one of the few companies that will still do that for small orders.
Famag HSS G are just as good but seem hard to get in the US and pricey. First choice if you want a brad point without the big outside lip. Also fabulous are the Festool Centrotec bits, which are worth buying if you have a Festool drill. They pretty much only sell small sizes in the US but that is an easy way to buy ONE drill bit and see how a good drill bit works for you. The Festool bits are noticeably better than the Famag Colt bits and probably equal to the WL Fuller.
I think you have to choose the right tool for the job. Recently that has meant a single 1.5" Forstner bit for $160 and a 10 pack of 1/8" bits from HF for $1.25. Carbide is great for a few jobs but the wrong choice for most wood drilling.
I suggest you call WL Fuller or email nick@wlfuller.com, where you will get a reply from someone that actually personally grinds some of the bits.