Destruction in New York has been constant in the Marvel Cinematic Universe ever since The Avengers released ... harrowing impacts of their collateral damage. With Sentry set to unleash a new ...

which is ample justification for their absence in New York City during the events of Thunderbolts*. The MCU is teeming with powerful villainous threats, and the Avengers have been shown operating ...

The comics also often have multiple Avengers teams that co-exist with one another, such as the regular, New York-based Avengers and the West Coast Avengers. Maybe it's time for the MCU to do the same.