On one hand I agree with you, on the other hand, the difference was so large on such an unintuitive build that leveling the 'normal' way you do with every other champion was essentially a trap. It wasn't so much that the skip R build was a playstyle so much as the optimal way to play the champion if you were solo. Building juggernaut items on Darius isn't a playstyle, it's just the best way to play him - similar thing here.
Ryze was changed for reasons unrelated to this max order, I believe - More to do with the massive gulf between his pro play and regular play performance.
His waveclear with his old E scaling was very strong, particularly in the laning phase, so it had to be changed. Shifting the damage increase of Q away from E ranks to his ult was a great way of doing that. It just so happened that it also made his leveling order more similar to every other champion (ie max a single ability at a time, always level your ult when you can). It's a useful tactic, be...
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