If you guys are in the mood for Conspiracy Theories I would say that manufacturers are making it hard to change your own oil to make the car more "Dealer Dependent" and they may even instruct the grease monkeys at Quick Lube to over-tighten the filter ON PURPOSE to dissuade owners to do it themself. But we have tricks to get that bugger off such as using a mousepad or even the hack of hammering a flatblade screwdriver into the filter and then using that to twist it off.
Where there is a will there is a way. With enough patience and with the right tools (or the hacks) even a wimp can get it off. And dont even get me started on the tire shops that over-torque the wheel bolts with an impact wrench.