I think it's probably too early for this to mean much of anything. Most people who bought an EV bought it new within the past ten years and probably haven't needed to replace their car yet. I don't doubt that the vast majority of EV buyers will choose an EV as their next car, but over 99% would be an incredible statistic if that's what we see ten years from now.
I bought a gas RAV4 in 2016 because I didn't think the tech was quite there yet and I couldn't sit around on a waiting list even if I was ready to trust the tech yet. But even then, I said to myself "this is the last gas powered vehicle I'll ever buy." Just a few weeks short of 9 years later, I believe that now more than ever. If my car dies today, I'm shopping for an EV, probably a Ford if they're still doing that incentive to throw in the upgraded home charging station installation or whatever that promo was. And once that infrastructure is in somebody's home, why go back to using gasoline? Even without that, charging on a standard outlet overnight is plenty for most and is already a massive change in habits and routines that people won't want to change back from. I don't like having to stop at a gas station every few days. I don't like oil changes. Who would choose to go back to all this bullshit after tasting life without that level of hassle? Especially now that the gap in cost between ICE and EV has dropped so much.