I don’t consider teaching principals but not teaching Christianity such a bad thing. If the goal was to teach Christianity, then they missed their mark, but teaching foundational principals is a worthy accomplishment.
This series should be a tool, and not the only tool, in a parent’s toolbox. It opens the door to more discussion. I am close to two little boys, who never had any Christian teaching before last year. Veggie Tales opened the door to more discussions. They asked me questions, and I was able to tell them about Christ. Veggie Tales opened the door, but I never expected them to do all of the work.
BTW - Veggie Tales helped soften Mom’s heart and prepare it for the seed of the Gospel - which is flourishing now.
I agree with your assessment. Use it as a tool, it does very well for that purpose.