I am not very familiar with the WN or the LN, but the industrial setting is the same in the manga, so I wonder if this is something the author decided worked better after the fact.
And just how bad Gamma is really comes across so much better when it's animated. Probably the highlight of the episode for me.
And I feel like the Gamma scene worked better in the anime for me. Truly shows just how much she's just relying on her ridiculous specs while still being awkward and uncoordinated.