Buddy, I obviously agree for MMBtu, which is why I cited it among other unordered points and explicitly called out that people are liable not to know it. If you do know it, though, it immediately gives it away, which is why I included it to cover bases.
But a crude oil tanker is a common thing plenty of people have seen, and putting "power plant" in there is straight-up a self-own: you are profoundly ignorant about energy infrastructure if you think we're taking gasoline into power plants to convert into electricity. That doesn't make someone bad or stupid; it just means they have zero standing to complain about how an energy infographic misled them by calling methane "gas". They lack the bare minimum foundation to even understand what it's trying to say.
It should also be obvious that when I said "not pure solar", I meant "generally", because at that point the reader would need to be willfully obtuse to construe the graphic to be about electric cars. I almost hedged with "generally", but I (wrongly, naïvely) assumed it wouldn't be subjected to superfluous pedantry.
Edit: I actually forgot another obvious point because there are just so many things that would tell reasonable people this isn't about gasoline: why would a tanker be used as an icon to represent gasoline anyway? A jerrycan, an oil barrel, or a gas pump would clearly be much better, because oil tankers don't represent the final product anyway, aren't a common icon for gasoline (if basically at all), and don't have a distinctive side profile. There are a million reasons it's not the graphic's fault if you look at it and assume it's about gasoline.