Impeachment charges have nothing whatever to do with criminality. It's a political process not a criminal process.
Groping is criminal as would be lying to government officials. Unlike what happened to Trump where phony charges were used in his impeachments, the New York legislature, especially because they're mainly Democrats like Cuomo, will rise to a higher standard of apparent criminal intent to impeach him. By the way, impeachment is supposed to be about Crimes. In the US Consitution, it supposed to be for treason or high crimes and misdemeanours. Those are all crimes. Impeachment is a political process but based on crimes, or should be. Interestingly, NY Consitution is more non-descript than the US constitution.
Section 240 NY: The court for the trial of impeachments has the power to try impeachments, when presented by the assembly, of all civil officers of the state, except justices of the peace, justices of justices' courts, police justices, and their clerks,
for willful and corrupt misconduct in office.You like to read this stuff, so you might find it interesting. If I've missed anything or got a point or two wrong, please report back to us.
https://gothamist.com/news/so-how-does-impeachment-work-new-york-statehttps://www.nysenate.gov/legislation/laws/JUD/240