There are so many conflicts, half-truths, inaccuracies and bizarre lines in there that it's not worth the time to break them down, but suffice to say I don't agree, and you should probably expand your knowledge and reading sources on the subject (not the least of which are the dimensions of the oil/gas industry you're sticking with, and the relative economies and scale of a yard tool vs. a car).
Beyond that, battery tools are great. Zero maintenance, start every time, have gobs of power, no fumy fuel to store (and preserve), tend to be smaller and lighter, are quieter, etc. etc. I get why they aren't ready in some spots for commercial use, but for a homeowner/DIY guy, I'm happy to be rid of gas and for that matter air tools.