Effectively blitzing the Blazers' P&R and trapping Dame takes more than a decision by an opponent to do so. It also takes having the right personnel: quick, defensive-minded guards, and a big man capable of moving quickly to the perimeter to pick up Dame on the screen and then get back to cover the rim if Dame passes the ball off to Nurk or another big. The Pelicans last season had that combination of players. They won't be in the playoffs this year. There's only one AD and he's the only big who's been shown to be able to take on that kind of defensive assignment for a full series. The Jazz and Nuggets have somewhat mobile big men, but they are nowhere near as quick as AD and their guards aren't the defenders that Holliday and Rondo were for the Pelicans. Neither of those teams has been able to slow Dame much in the regular season. The Warriors, Thunder, Spurs, Kings, Clippers, and Lakers certainly don't have it. Houston theoretically has it in Paul and Capela, but Harden is such a defensive liability that if Paul dedicates that much energy to stopping Dame, CJ is going to score a ton.
The other factor is that the Pelicans only held Dame to about 7 points under his season average in that series. CJ picked up a little of the slack, but the rest of the roster was pretty much ineffective. I don't see that being a problem this year. Hold Dame down and you've got a whole host of guys who can take up some of the slack.