Joel - sorry, can't agree it's very walkable (but you knew I wouldn't). The two instances you mention remove it from that by my standards anyway (and one could also add 9 green to 10 tee to this), and you also have to consider the massive elevation change from the low point (2 green) to the high point (11 green). It tends to wear on one.
Manageable walk, yes. Very walkable, that depends on one's standards and fitness level, I suppose. But let's talk again after you have done it a few more times. The walk gets harder the more times you do it.
Great course? For sure. That part never changes.