1) Permanent Tenser was removed, and now there are 3 abilities tied to the same melee transformation. Devs could easily put back Tenser toggle at tier 4-5, and also keep the current toggle for melee lovers.
2) Too many clickies in the tree, considering casters (especially Wizard) already have lots of buttons to press. Arcane Shiphon and Tempest could easily be upgrades to Eldritch Strike. Also, Improved Mage Armor and Shield don't need to be SLAs (more buttons).. they could just be passive effects. Also, there is an Action Boost in the tree, which is another button!
3) Shield Training (tier 2) simply gives proficiency to a class that already has Master's Touch. Could have a boost added, such as +5% shield bash chance.