Right, all things considered they're still less carbon intensive than and ICE car, especially with a few hundred thousand miles on the odometer. People seem to conveniently forget that an ICE car requires a lot of carbon to manufacture, and then creates even more with every mile driven. So even at the start the EV is ahead (or as your source says, within 5 months it's ahead).
I'm a little triggered when people bring up BEVs being more intensive to manufacture. That report I linked was used as the posterchild for why BEVs are garbage, like Wired's "Tesla's electric cars aren't as green as you might think"[1]. But the report is amazing! It put to bed fears that electric cars needed 50% or more as much to make, that they needed to be driven 150,000 miles to break even, etc etc. On top of that it says that BEVs will be cleaner than conventional cars to build. It was an incredibly great result to that investigation, but people still turned around and portrayed it was a bad thing. That really annoyed me, since it was more optimistic than even most proponents of electric cars had expected. I personally thought electric cars would always produce more waste just by virtue of weighing more, but they are so much simpler to create that that isn't true.