How common is it, actually? And on what platforms/architectures? It was a common problem back in the day when most code was compiled for x86, since exceptions weren't designed to be zero-cost in that ABI.

For what it's worth, the article itself has this bit:

"Thanks to the zero-cost exception model used in most C++ implementations (see section 5.4 of TR18015), the code in a try block runs without any overhead."