(1) By design, the Founders intended that impeachable offenses not be coextensive with criminal law.
(2) Whitaker pretending not to know the contours of the accusation of abuse of power here is precious.
They are intended to describe abuses of power—per Hamilton in the Federalist Papers, political crimes against the public and the office.
This is a "misdemeanor" in the "high Crimes and misdemeanors" sense of the word.
Trump specifically asked about two things: (1) the CrowdStrike conspiracy theory that a wealthy Ukrainian ran CrowdStrike (nope) and that a server was in Ukraine (nope); and (2) the Bidens.
He made specific requests. This wasn't just "oh, Trump sometimes isn't precise." He was very precise about what was on his mind this time.