Removing incentives for EVs has to happen eventually, especially if ICE cars get banned. Something has to replace that loss in revenue.
Also, this is more than "removing incentives" -- it's an outright EV penalty. The increase in registration fee for EVs is roughly double what the most popular ICE car (Honda CRV) pays in annual gas taxes in the state, according to Gothamist/NPR https://gothamist.com/news/what-drivers-need-to-know-as-nj-m...
One of the sponsors of the bill (that increased the EV registration fee in order to fund roads) is a state senator who is also the COO of a major roadwork construction company.
He's also simultaneously the mayor of a 10,000 population town with only a couple public chargers. Way more trucks than EVs in his town btw.