Hm, thanks for the informative post for others considering buying this product!
I wouldn't be too hard on the set though. I have not bought it myself but am considering it and am not put off by the issues you raised. I don't think the discrepancies you mentioned are significant enough to throw a child's understanding. I have used similar methods for learning French as an adult and often the pictures are a fairly poor example of the word but are nonetheless valuable.
If this is your only concern I still think the vids are probably quite good, especially if you watch the videos with your child and you can help clarify. I would by no means toss the set based on those minor discrepancies but if you continue to find more serious errors please let us know!