Not to my understanding.
Social distancing arrests are a public safety measure. By arresting more black people, de Blasio is giving the black community more public safety (from virus spread threat). This is really just stop and frisk.
This is what he said regarding to 35 out of 40 social distancing arrests being black:
“What happened with stop and frisk was a systematic, oppressive, unconstitutional strategy that created a new problem much bigger than anything it purported to solve,” he said. “This is the farthest thing from that. This is addressing a pandemic. This is addressing the fact that lives are in danger all the time. By definition, our police department needs to be a part of that because safety is what they do.”
Link: https://www.nytimes.com/2020/05/07/nyregion/nypd-social-distancing-race-coronavirus.html