This is a positive for everyone. No-knock raids put police in more danger as well as the suspects and bystanders, especially in states where gun ownership is common. More police departments should consider this kind of reform.

From NPR:

Houston Police Chief Art Acevedo says his department will stop serving “no knock” search warrants, weeks after a raid on a house left two married suspects dead and five officers injured. Acevedo also reiterated that the officer who led that raid may face criminal charges.
“The no-knock warrant’s going to go away, kind of like leaded gasoline in our city,” Acevedo said. He added that raids that stem from those warrants would only be used in very limited cases — and that they would not be used to nab people suspected of dealing small amounts of drugs.