No, the principle is that there are more renters than apartment owners, and therefore politicians pander to the tyranny of the majority (and those who feel sorry for them) while trampling on the property rights of the minority. Votes over principle. Just please don't call it "renters' rights." There are no such rights, only cynical politicians willing to rob from Peter to pay Paul; and the politician who does that will always have the support of Paul.
You claim to be a lawyer but you certainly are not very well versed in the facts of New York City's rental realities. The landlords have money, lots of it. They pay, donate, and bribe the politicians and judges. The majority gets screwed as a result. Really, read something, like try 10 years of news articles on skyrocketing rents.