I am primarily thinking of the mobility required to do efficient MF runs.
Barbarian has the leap - long range and able to clear walls. Has no resource (fury) cost.
Demon Hunter has Vault - mid range and unable to clear walls, has no cooldown. Costs 10 discipline. Can be upgraded to cost 20% (2), or upgraded to have long range. On top of this, the DH has hot pursuit - a passive buff that gives 10% movement speed with full hate resource.
Monk has Dashing strike - short range, no cooldown. Costs 10 spirit. Can be upgraded to buff movement speed by 55% after use, or to cost 70% less (3) spirit. Also has a passive ability to increase movement speed 10%
Wizard has Teleport - mid range, 16 sec cooldown. Costs 15 Arcane Power. Can be upgraded to have instant recast within 2 seconds.
Does this change anyone's mind about the WD's late game potential, where farming efficiency is a considerable factor towards the viability of the class.
TL;DR - All other classes than the WD have movement speed boosting abilities, and in some cases passives as well. Is this an issue?