I highly doubt Verbeek trades the 2nd guy he brought in to the system before even playing an NHL game

You have to take the long view sometimes. Here, we won't contend this season and it's highly unlikely that we'll contend next season, either, so we'd have Boeser for basically one meaningful year. Meanwhile, the expectation/hope for a first-round draft pick is that he has an NHL career, i.e., six or seven useful seasons, which corresponds with our anticipated window of contention.

I wouldn't make this trade as the Anaheim GM.

The Ducks bringing in Boeser to further improve the forward group doesn't make much sense when the D-corp is a shambles. In two years a trade like that would make perfect sense, but right now it's still build from within mode.