Can we get a different negative effect from Retaliation please(/hates moving slow ><)

[Arcon]

It would appear that you can even retaliate during the 2 second delay of an animation, which is probably why you can get 100% TP before Ukko's Fury ends.

Indeed, Retaliation can process as long as the weapon is drawn, even if the JA delay is active. Same goes for WS delay or even during a ranged attack (which won't matter for most people, but it's a fun fact). During high Haste situations, the gap between WS and the next TP phase grows more and more relevant; 2 seconds during the animation at 0 Haste are less signifcant if it takes 1 minute to get to 100% than if it takes 10 seconds.