Thanks for reading my post in the correct light. That said, I don't think they are telling me to code in particular language, they are just trying to cover their butts and not end up with an albatross, albeit very unlikely.
Thanks for your question about earning more money or finding more satisfaction. For me personally, it's not about either, but if I were to answer it truthfully I would never use PHP.
Bottom line: being a small fish has its advantages.
"The important work of moving the world forward does not wait to be done by perfect men." George Eliot