I saw lots of very professional gunhandling over there. Fingers are off triggers, ready positions are good, fighting stances are squared-up and efficient. Marksmanship can use improvement, but it always can. I definitely think we have a more realistic view of modern urban fighting than we've ever had before.
There's a lot of urban fighting and structure clearing, but I am unsure how applicable that will be to anyone but SWAT serving no-knock warrants. Entries are almost always dynamic, mainly with four-man teams from what I saw, and very fast-moving. This seems inapplicable to cops working alone or in pairs, except perhaps in the case of an active shooter, and certainly has little in common with the armed citizen.