Big time.

It's especially depressing given their huge focus on "object oriented programming," given the 1000s of travesties birthed in its name on an hourly basis in BigCos of the world.

1) Even if you don't code FP in your day job, your sanity and code will benefit permanently from a strong grounding in it.

2) Nothing beats getting paid to code FP.

It's Google. They're notorious for using... less than advanced languages, to put it nicely. (C++, Java, Python, Go) Obviously it works for them. But just imagine if the founders had been more inclined to a LISP or an ML.

We'd still be using yahoo?

Learn other Programming Languages: [...] Lisp and Scheme.

Apart from that, there's probably a reason no top 100 company uses a purely functional language as their foundation.