Parkour is for secrets in the void and jumps and slides work into your melee and defense, and melee is an entire system of combat on its own now - as in you can run missions with only your melee weapon, with offensive, defensive and custom combination attacks. Its also not a hard gear check as you can defeat level 25-30 enemies with level 5 weapons. You're selling the game way short. But most importantly, its had time to adapt to its playerbase and evolve its systems wholesale. That evolution may prove to be more valuable than hundreds of staff and half a billion in funding, at least for this first installment.
Last bit: Warframe has shit for lore, and the PVP is like many loot games in that its just for kicks, but it does have all kinds of presence and personality. The art style is colorful and crazy unique, and even better in motion. Its real competition.