With only 4,000hrs on 146s to my name, I'm quite junior to many I know, but that arrival (not worthy of being called a landing) would be a full-on tea with NO buscuits job in my old company. Utter crap. Must have been a management pilot......
146/RJ sops are usually to pull the airbrake out at @200 ft. when committed. it givesd a slight nose up pitch and loses you about 5-15 kts at touchdown, which should be REF-7kts.
On steep apps, it's out all the way down, to ensure the engines are spooled up better. With the rudder of the 146/RJ, that yaw was inexcusable. The Spoilers on the RJ are auto, unlike the 146. Makes the nose drop hard too.
I miss flying the 146, and hopefully there'll be one to play with in the next world for me....They really don't make em' like that any more.