This is the natural consequence of Citizen United (such a dishonest name). When those with money is allowed to leverage their wealth to disproportionately affect legal proceedings and lawmaking, it is just a step towards dystopia.
It's just a lawsuit against NY that the plaintiffs hope to get in front of Supreme Court and win there.
The article insinuates there's lobbying involved but it's mum on the details i.e. what exactly they are spending money on given that it'll be decided by 9 judges.
Furthermore, I believe Citizen United is specifically about spending money on political candidates and whatever lobbying this is, it's not that.