Obama voiced his opinion on criminal cases that were causing a great deal of turmoil in the communities those crimes happened in.  He also echoed concern for people of color seemingly being treated unfairly in some of those cases.  The things Obama spoke out on, were current events that needed a Presidents attention in at least acknowledging that people were upset and that he was aware of their issues.  There was (and still is) the very real issue of police relations with these communities.  Did Obama ever suggest a business should fire its employees for not doing something he disagreed with?  Did Obama ever try and dictate how a business should be run? 

Trump on the other hand rehashed an old controversy, for no real apparent reason other than he has the inability to control anything he says because he has the impulse control of a toddler.  Trump will say whatever is on his mind without a single thought of how it might impact anyone else.