Thread:Thunderbird3InternationalRescue/@comment-25600892-20191118010827/@comment-33744259-20191119223801

Maybe it was because:


 * A. They couldn't find someone to voice Green
 * B. While they kept the original plot the same, they probably wanted to keep it different from the original the same, which can pretty much be said for all the episodes so far.
 * C. It probably thought it would take too much time to make a CGI model of Green.
 * D. All of the above

My money's on D, since all these reasons seem likely.