This was part of the discussion when the Phoenix pole was launched. The adjustment range on a length way clamp (when a pole wears) simply isn't there, plus the clamp body can never clamp a section like a lateral clamp can.
Lateral clamps have always been superior to length way clamps. Do some people find length way clamps easier to use? Sure. And I'm sure adjustments have been made by Facelift to prolong the life of the pole, but it's still an inferior clamping system in it's design and will never match lateral clamps. This proves that argument completely.
My 2008 Mark 1 SL-X everyday pole was still usable with the old style clamps, even though I had to adjust the clamp on section one and two if I wanted super tight grip. The point is, the clamps were still operating within parameters, and still had a ton of further adjustment. They were still gripping the sections so tightly, that I couldn't move them. This is barely the case with length way clamps when a pole is new.
Now that smart (lateral) clamps are out, you can wear a pole out beyond what we were used to, prolonging the life of a pole even more.
Thinking back I personally found it very odd that Facelift brought a pole out with length way clamps to begin with.