Coal is going away, so a large part of the guy's argument will be moot. Nat gas is a lot cleaner. And of course depending where you are, you need not use coal-derived electricity even today (e.g. PacNW).
Not sure how long a pure EV battery lasts. A hybrid (Prius and similar) will go on average 250K+ on the battery. Ask a taxi driver with one. (Yes, it is relevant to ordinary driving, because on average, non-taxi hybrids are going far over 150K on original batteries too. The battery is actually warranted for 150K in CA, and they are seldom replaced.) As for degraded performance, see
The 200,000-mile question: How does the Toyota Prius hold up? which is consistent with what I've seen (100K on our Prius) and my dad has seen (nearing 200K on his).
The pure EV battery gets used harder so it probably doesn't last as long. But those things aren't meant for road trips. Complaining that a Nissan Leaf is a slow way to get across the country is as stupid as complaining that a Winnebago is bad on the skidpad. Pure EVs like the Leaf are short distance city cars, probably take a decade to rack up even 100K miles. (Not sure about the Tesla, realistically it is bought as a fast status symbol, the owner only cares if it is more practical that his Ferrari . . .)