This led to the instantaneous rise in popularity of so-called "crossover" vehicles. Puffy vehicles that looked kinda SUV-ish and were elevated for higher road visibility but were built on a smaller (lower tax rate) car chassis.
The article of course wants to go to the next step, banning them outright which is just not going to happen. We don't live in a dictatorship and so absolutes like "never make an SUV" bans this don't really happen. Especially because... there are plenty of real-world non-edge-case scenarios in which having one vehicle for a lot of people and stuff is much more efficient than multiple sedans.
We could keep raising taxes on those SUV chassis though, I guess.