[have_faith]

I think BEM is often misunderstood, it's not immediately obvious to beginners why it's helpful. Specificity is one problem it helps solve as you mentioned but the biggest thing for me is it forces you to think about what an element is and who it belongs to.

If someone writes '.nav a' they're saying "select all links inside of nav", but what they really wanted to say was "select all nav menu links, and nothing else", a class like '.nav__link' will never select other links that happen to be in the nav (CTA buttons, logo links, etc) and will survive markup restructuring, something like ".nav > ul > li > a' will not survive minor markup changes as it doesn't express what someone wanted to select in the first place. I think this way of thinking brings a lot of benefits that most CSS frameworks don't give.