That is just such an artificial and competitive way of doing things. If I teach somebody something, I want them to understand it completely. If I teach 10 people something, I similarly want all 10 of them to understand it - I want them all to get an A. I can artificially jack up the difficulty and cause some people to struggle, but why on earth would I want to do that? To make it easier for corporations to select employees? Fuck that noise. I agree that in a high achievement academic environment raising the difficulty has value in that it teaches you how to strive and succeed, and that is important to know. But knowing how to do your taxes, order enough wood for the winter, keep your business in the black? Everyone should be getting As in that. Shrugging our shoulders at the people failing to keep up and saying "eh. bell curve" is treating people as disposable and not worth our efforts.

I happily stipulate that grading to a curve doesn't, in itself, imply that. But the reality is that some students are not mastering the core material, and we should not be okay with that.