I wouldn't worry about it, Brash. Nitpicking is the nature of criticism, which is all good as long as there is a valid point.

I see it more from a purely visual angle as well as functional one (as far as: functional to the purpose of moving the plot/movie). If the deleted scene or added FX doesn't improve what was already there, then there isn't really a point other than to just throw it in there (compare the original scene of E.T. on the left among the branches looking up at his ship leaving as his heart glow fades away, compared to the replaced Special Edition version where a CGI version of E.T. shambles up to the edge to look out. Not only unnecessary, but ruins/deletes a beautifully composed shot).

In regards to the Executor's engines, I don't remember them being RED red, even back in 1980...