No, the ISA overall is not designed around that notion. The designers merely recognized that this is a common pattern, and added 1 or 2 instructions specifically for it (it's not clear to me whether using BL for other purposes would have the same detrimental effects that using RET as in the article). This would likely be a very good addition even in a purely hypothetical world where it wasn't a common pattern in 99.9% of languages.

Also, I'm not sure why you believe that there is any kind of language where this pattern isn't common. Even something like Forth relies heavily on jumping into subroutines and back.