I don't like Schumer and I don't think he's a particularly good leader. But I think he's mostly correct about the CR. 

House and Senate leaders are usually always kind of unpopular because the job involves telling your coalition things they don't want to hear, and they aren't usually good communicators because the job is much more about managing caucus than it is about public communications. 

Nancy Pelosi was an effective leader and a terrible communicator. Same for Mitch McConnell.

  
My complaint about Schumer is his unwillingness to nuke filibuster. 

Filibuster is the most broken part about American politics and the source of most of the dysfunction in congress. Getting rid of it should be the number one goal of any Dem senate leader.