What type of texture is it? Smooth sand textured or was it done with the large aggregate. You may be able to match it with plain stucco mix and then repaint it.
I agree with what you are saying. The op was looking for another option because of the cost and the license needed to apply Dryvit so I have a feeling that he is looking for a cheap easy option. Stucco won't be an exact match but it can be done pretty close as far as texture is concerned. He also said the the Dryvit had been painted over so an actual Dryvit color match wouldn't seem to be a concern. In my dealings with this product, any repair work would require an entire area to be recoated because the colors varied from each bucket even with the same batch #'s.I'd recommend getting the repair done by the professionals. Dryvit systems use a specialized synthetic stucco applied in thin layers. The only material that patches it correctly, is the Dryvit material itself.