I dont remember "kept telling you" as it's not one of my favourites, but it's a good episode and a very original and unique Transformer story. I've not seen it again though since the 90's so I can't really comment.

I know you had expectations that Transmutate was an important character because of the assemble-toy in the BW10 toys, so perhaps learning it was a deformed Transformer might have been disappointing?