When the hole was designed, there was no chance of anyone reaching the green. Today, some of the longer hitters could reach the green. While it is true that the trees nullify some of the distance differential between long and short hitters, that isn't such a bad thing on occasion. Longer hitters have an advantage on most holes, what's wrong with the occasional hole limiting this advantage and in fact asking the longer hitter to make some decisions on the tee and execute a distance and line of play demand? The hole comes at the end of the routing. So thinking in terms of match play, I think it is fair to give the shorter hitter a chance against the longer hitters if (s)he is hanging in there this long in the match.
Yet, temptation is also a very good thing. Tom and Sean suggest that with today's carry and overall distances off the tee, another approach is to give them the temptation and ask them to pull it off given the very difficult green site.
I think there are advantages to both scenarios. In balance, given that this is at the later stage of the golf course, I'd keep the trees, especially as the longer hitter has a distinct advantage on the 440-yard closing hole.