And thats the problem I see, why make yet another redundant ability. If you have an Artificer and a Sorc/Bard/Wizzy and the party and its still better to just let the Sorc/Bard/Wizzy cast haste, then why make a completely different ability in the first place? Just give artificers Haste.
However IF the ability lasts longer, say 10 Minutes + 30s/level then suddenly you have an ability people are willing to wait for it to be cast on everyone, as its a set it and forget it haste. It gives artificers a "Go to" buff that makes their haste more desirable then the AoE haste of the other casters. Being able to haste once at the start of a run would be an awesome boon