I'm really confused at that take.
If you watched the Corridor Channel on YouTube, you can catch a lot of times that Unreal is treated as a draft, or the on-set reference, and gets replaced almost always, before shipping the final. Something doesn't add up here.
Having watched a great deal of Andromeda, Star Trek, and Hercules/Xena growing up, I would submit that weak video effects can be perfectly fine as long as the actors take them seriously enough.