Even after trading away two all-star outfielders, the Dodgers still have many (maybe too many) players that have made the case to be everyday starters. Despite this, some of these players will not be getting consistent at-bats.
The DH would open up another spot on the lineup for a very deep roster. For example, Alex Verdugo has been a casualty of the depth the Dodgers possess. Though it looks like he will be getting the starting job already, opening up the season with a DH would only solidify that notion. This would finally give the young outfielder a spot in the lineup at the very least.