Go had panic/recover right from the get go. Nobody “caved.” And indeed, you are free to use panic/recover for error handling in your code. That was always allowed.
That said, the key insight of the exception craze is that error returns are a normal part of a functions behaviour and as such should not use extraordinary control flow to take place.
Exceptions (panics) are used for things that should never happen or are indicative of a programmer error, like nil dereferences or out-of-bounds array accesses. That is, things where the programmer is not expected to provide reasonable behaviour on the API level if it happens (but perhaps there is a whole-program fault handler to shut down cleanly).
Opening a file that does not exist? Database record not found? Invalid credentials? These should be anticipated by the programmer and can occur at any time. Not exceptions, normal return values. Go requests that you think about these possibilities instead of pretending they can be ignored.
