Actually there's a lot of truth in that. I have one of those 36MP DSLRs, and it is liberating to crop and still get a high quality image out. But the same has been true for years with film. I have heavily cropped medium and large format film when I wanted to use a longer lens than I had with me (or owned). With a quality lens and fine grained film you can get decent results even with a large crop (which is effectively just a big enlargement). Certainly using the ideal lens for each shot would be nice, but it's not always realistic.
Originally Posted by kb3lms