Seriously?
Every other class gets a pretty effective evasion tool with this jump yet...not the Titan.
Not to mention if used effectively its a great tool for attacking an opponent. Ive had plenty of Warlocks and Hunters evade my shots and appear inches from me to use a shotgun blast or a melee to one shot me.
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for the same reason hunters dont get 2 grenades, or self rev... if they wanted everything to be equal their would only be 1 class... stfu and deal with it