Spot on.
E10 is actually a benefit in situations that used to cause water in fuel or frozen gas line. Haven't bought a bottle Heet or Iso Heet in 20+ years. Used to carry a bottle of Iso in the snomachines tool kit and needed it once or twice.
Also noteworthy, high pressure fuel injection (again, last 20 years or so) has eliminated or reduced alot of issues due to fuel quality. 50-60psi injectors don't get plugged up with a little goober of varnish like jets and needles do. ECMs can and do retard timing to cover for some bad fuel behavior as well.
But to
@mtnmankev question/issue, yeah it's still a problem with carbs and old fuel, moreso than pure gas.