A lot of danglers used to use skinny heel blades (see M. Lemieux, D. Savard, Zhamnov, Kovalev, Viktor Kozlov, even young Datsyuk) which has me wondering if some perceived a difference in puck feel back when sticks or at least blades were wood. The physics of sticks has changed drastically since their time, though. I think when Datsyuk switched from his teardrop blade profile to a goalie blade profile and still managed to dangle the world’s best while reaping the defensive and puck challenge benefits, other players started to try it out with their own patterns. The night and day switch in stick materials and engineering that happened at the same time, or perhaps rather that Datsyuk was the first to prominently exploit, enabled the best of both worlds (good feel and lots of blade face for winning pucks) that max height blades can offer.
Having said that, I’ve never had as much success intercepting passes as I have when I’ve played with Kovalev or Leino Pro patterns. They have skinny heels, but the max length seems to catch people off guard.
Just my armchair theory on the historical change from skinny to fat heel blades.