I never actually bought a cam from Crane, but I’ve read or heard long ago more than a few times that their descriptions were often more than what it actually was (and now you do as well!) I know that was why I never went with them the few times I bought cams back in the days of only catalogs. Like you say, the more we learn the more you know what you’re looking at.
It's like a lot of the descriptions even now. You see where it says something like "RPM range 1000-4500" and you know dang well it'll pull stumps till 6500. lol It's all about the combination. That just caint be repeated enough.