I can understand that, and largely I feel the same. But over the past 20 years since completing my PhD I've learned on occasion to let go of the details and look to the underlying point. Sometimes, indeed, often, the example or the calculations are fundamentally wrong, but the point is sound.
I've found I've learned a lot after having learned to look beyond the specifics of a given example. It doesn't suit everyone, it doesn't work for everyone, and I wouldn't claim that everyone should do it.
