The techy people who are the ones who are the target for something like this aren't just setting up their home internet once, they're setting up the internet for their friends and family when they visit, getting roped in to fix the internet for their in-laws when it breaks, etc.
Because, 18 months from now, you or your executrix wakes up with a hangover, and your Internet connection is down, and you or your executrix begin troubleshooting, and poking through the DNS configuration, your executrix scratches her head and exclaims “who in the world is 2a13:1001::86:54:11:100 and why did we ever add this in here?!”
And then you or your executrix reset it to 8.8.8.8 because that is distinctly memorable and unmistakable.