Like, they know how to do a simple HTTP query in C/go whatever, and then don’t understand why would you need the whole complexity of spring.
It just turns out that the real world is more complex than what they assume - and they are often more than aware of that in their specific subfield.
C++ always seems to me pretty absurd just because C++ people don't seem to know better ways, and seem to think to much about squeezing out the least little bit of performance instead of aiming for simple abstractions that are performant enough. Also, the last 40 years of programming language development seems to be unknown to them, or at least doesn't influence their decisions, or if they pick up a new idea, it's implemented in the most possible awkward way (because, again, performance).