The difference was that the original had actual style.
New one just looks like every generic CGI children's cartoon.
I guess it doesn't matter to me. I'm not a child nor do I have children.
It was so popular that they got some half decent funding.
But just imagine if they partnered with a toy brand, like Tonka. And heavy equipment, like Caterpillar and Case and Komatsu and so on. They'd have animation and visuals on par with cinematic 3d animation. Imagine.