It's better PR for Apple to fix it. Because as this forum demonstrates, even though the iPad isn't at fault, people are blaming it and Apple. If Apple just sits back and says "not our fault" then it will look bad on them. Not only that, but experience with router manufacturers leads me to believe they'll do everything they can to blame everyone else and their brother before they take responsibility for themselves. So, in the end, its basically better for Apple to just do it themselves, whether its their fault or not.
You obviously haven't read my other posts here! haha. I'm no Apple apologist at all. I just love my iPad.
Things like that happen. I had a wireless router that worked great with a DSL modem. I switched over to cable and the router would lose the connection multiple times per day. I had the same logic that a lot of people here had, in that "it worked before why doesn't it work now!?". Sometimes problems don't always show up the way you expect them to. I swapped out that router with one running DD WRT and I had no problems at all until I got the router I have now, which also runs DD WRT and it runs without a hitch either.
Because ISP provided wireless routers are junk. I know people with Verizon FiOS routers that have major issues getting online. Verizon swapped it out many times until I came along and gave them the advice to get the regular wired modem and get their own wireless router. Problem solved.
It's just the way wireless routers are. If you're cheap and go with the ISP provided one then you're just asking for problems.
If you buy Apple products with the impression you won't be dealing with those sorts of problems then you should get away from ISP provided routers too. In my experience, whenever someone is having internet connectivity issues, unless theres a wiring problem, it's almost ALWAYS the ISP provided wireless router. I've lost count of how many times and people I've had to fix this sort of thing for and every single time it was the ISP provided router.