Yeah, the rabbis, low makeup effort zombie Fifield being unconvincingly tossed around by a cable was very immersion breaking to me. To me, the CGI creature looks a lot more convincing and story appropriate.
And the other Alien variants are fantastic, especially the Ultramorph. Looks imposing and much better than the Deacon. Honestly, to me, the Deacon was the worst design out of all of the concepts. They went with the worst one, the alien with the derpy duck face.