I'm all for removing TP costs for sprint.
In the latest raid tier we frequently saw mechanics that required all party members to position in certain spots, usually spread all over the field and not rarely with long ways to go. Example would be Inception in A12S, the boss isn't even targetable at that point, yet the melee and tanks have a far harder time to get into the correct postionions than healer and caster, who can use sprint. Effectively this forces classes who can't sprint to react and reposition far sooner than magic classes. And since the boss jumps at that point, not providing a target, all their fancy gap closing skills are useless to them.