Terry,
My opinions on trees has softened over the years. I have dozens of photos showing "double hazards" like the one in the photo above. Why would you want a double hazard? Unless for example you are on a pure links course where trees are not indigenous, you will have times where trees and bunkers interact. There is still a recovery shot in the photo above, albeit a difficult one, but it is there. Take Pine Valley's 12th and 14th holes for example. You can be in the left fairway bunker and be blocked from a direct shot to the green because of trees. It is an elbow hole and part of the hazard/s left are the trees. On 14, you can be left of the green in a bunker between the green and the water. The sand in this case is more your friend and less of a hazard but why? Again, most any kind of hazard and/or combination of hazards is ok if not overused. If those were solid pine trees in the above photo, then there is reason to question the purpose of the bunker or the trees (why have both).
Overall, TPC Sawgrass is part defined by the trees just like Harbour Town. You have to embrace the different challenges which is the beauty of golf.