Note that it put the income tax forecast at risk.

The individual taxpayer was paying ~hundreds of millions per year into an $86 billion dollar budget. It's kind of wild that an individual would be paying a tenth of a percent (or so) of a state's income taxes, but it's maybe not a substantial fraction.

Not that surprising when you have a progressive tax system and people who make tons of money.

New Jersey certainly has had budget issues and pension issues. But the current leadership has done fairly well with a budget suppress and continuing to fund the pension system. So as of now the loss of the single taxpayer while a loss to the budget hasn’t put a huge hole in the system. Obviously fully funding the pension after years of under funding will take time so we will see how it turns out.