[quote="Panpardus"]Everyone realized the visual continuity error. It was mostly likely a botched attempt at a forced callback, though if you wanted you could interpret it as a poorly delivered sarcastic line from Zira.[/quote]
It makes more sense to look at it that way. Given all the attempts the series creators have made to place The Lion Guard within the continuity of Lion King 2 (and therefore into The Lion King Canon) this would be too counterproductive to what they have been trying to accomplish for it to have just been an accident.