Energizer and Rough Terrain

Here’s something that came up during a game last night. I do know that rough terrain doesn’t affect forced movement such as push, slam or throw. Rough terrain affects only an advance. But due to the wording on the spell Energizer “Each model… can immediately advance…” it seems that Energizer movement Is affected by rough terrain. Since Energizer is only two inches, this would seem to mean that Energizer effectively cannot be used on rough terrain. Like… at all.

Is this correct?

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