Assembler vs C, C++ etc
I spent a large part of my career deep in mainframe Assembler applications and operating systems. A lot of it was really good and some was absolutely dreadful.
The principal determinant of success was elegance (or lack thereof) in design.
Same applies to C, C++ and all the wonderful new development environments that these days are proliferating faster than I can keep count. You may as well be in the fashion industry as bleeding edge IT.
Likely the A & B folk are sticking to well understood and proven development environments that are behind the times.