Maintenance for the week of November 4:
• [COMPLETE] ESO Store and Account System for maintenance – November 6, 9:00AM EST (14:00 UTC) - 6:00PM EST (23:00 UTC)
AFAIK, it does. ESO has "movement speed" and that base number gets augmented and/or penalized, depending. Swift buffs movement speed while being in stealth penalizes it, so the trick is to load on sufficient buffs to offset or even cancel the penalty.
I'm fresh out of outrage, but I could muster up some amused annoyance if required.