Tesla is not cutting back on gigacasting; it's just sticking to its current model approach, which is one front gigacast and one rear gigacast.
They've talked about some future vehicle platform using a single gigacast, but I never heard them talk about this as a sure thing, or as replacing the manner their current vehicles are produced. Their "model 2" was always described as using the "unboxed" approach, which to me would be incompatible with the single massive gigacast approach from the beginning.