Your opinion - not fact. Also, completely irrational. If you can't deal with getting two high damage hits from target, then either you lack the skill to build well, or the skill to react faster.
This game desperately needs more skill options. Third morphs would be really great I think, but we also need new skill lines like alteration, spellsword (1 hand + spells in offhand), and spears.
7 skills + 1 Ulti would require a complete balance pass for all skills and all PVE content. Basically you are asking for them to shift focus from things they are working on now to re-do a years old de
Consoles could support more than 5 skills by adding a modifier key, like LB or RB acting as a modifier to open A/B/X/Y up for more skill slots. It's been done before, the PS4 version of Path of Exile