I think that was the right move. With all the jumping around in time it would have looked weird to see Worf's makeup constantly changing in every other scene.
Actually, being so emmersed in the first season again, those flashback scenes in AGT now look weirder than ever
. They're all wearing the same uniforms, but suddenly look much older (especially Data, who doesn't look nearly as thin as he did). And details like the wrong bridge carpet color really stand out more as well.