I think it's nice that you guys are acknowledging that a green-to-tee walk can be a pleasant interlude within the round; I'm just telling you that they are usually a fact of the routing process which cannot be avoided. The walk is a function of getting you to where the next tee needs to be.
Examples:
The walk from 15 to 16 at Cypress Point is great, but I think it's entirely a function of the decision to make #16 a par three, and not a short par-4 from further back. The greens on 15 and 16 were non-negotiable, MacKenzie deemed the walk + the par-3 to be better than the par-4.
The walk from 11 to 12 at Crystal Downs is unavoidable. There is 90 feet of elevation change from the bottom of 11 to the 12th tee, most of it on a 15% slope behind the 11th green. If you wanted to play the five holes up top [12-16], you had to surmount that hill, and it was too severe to play a fairway up it. So, MacKenzie sets a green into the slope as far up as he thinks you can stand it, and then you walk the rest of the way. [Note also that the difficult hole #17 traverses this steep section of the property in reverse.]
The walk from 16 to 17 at TPC Sawgrass is a function of getting around the peninsula spectator mound which used to reside between the two holes ... plus it's a long way from 16 green to 18 tee and 17 is only 140 yards.
The walk from 11 to 12 at Pacific Dunes (and also the walk from 3 to 4) is a function of trying to get the routing so that there was a hole with the cliff on the right (#4) in between the two holes with the cliff to the left (#11 and #13). To do so, we had to get from #3 green around #12 green to #4 tee, and from #11 green around #5 tee to #12 tee. Originally, we wanted to use the back of #5 tee for #12 to shorten the walk, but we decided that people would try to play backwards down #4 fairway from that angle, so we moved all the tees for #12 up to the right, which increases the walk. We felt we could get away with that because you're walking along the oceanfront -- the walk is very much the same as the walk from 4 to 5 at Barnbougle, except that you've already seen lots of ocean by then at Pacific.