You may be onto something, but I think a lot of it is an odd mix of
buzzword compliance and hipsterism. If you meet those people again, you
should consider explaining to them the wonders of Forth. Surely they
can't consider their work complete, having left out yet another
obsolete, impractical tool.
With Graham, it's more likely that his choice of tools is a result of
his crippling mental illness, so we should judge him gently. After all,
it's amazing in a way that he can, after years of debugging, get
anything at all. And, of course, he must be constantly distracted with
worry and guilt over the fact that he still owes Brad $1000.