Does a TF series really need Human characters to succeed?

I thought this would be interesting to discuss on it's own given the variety of opinions on the emphasis on "More human drama than ever before."
For my part, I'd argue no, a TF show doesn't always need human characters to be an integral part of a show or series. I'm aware of the opinion that a show needs human characters in order for kid's to 'see themselves in the adventure,' and relate, but consider this...
When I was a kid the robots were what interested me. Cybertron is what interested me. The robots were the characters I'd wanted to see myself in. When my friends and I 'played' Transformers on the playground at school (toys having to remain at home in fear of confiscation), no one ever pretended to be Spike; you were Optimus, Sideswipe, Prowl, Hound, Mirage, etc. When it was time to play with the toys....Nobody ever pretended that Spike was around; human characters didn't exist, and the only time they were remotely cool is when the humans themselves transformed into heads, guns, or engines!
Beast Wars proved in spades, that you don't need human characters to have a successful series, I'd therefore argue that what is really needed is skillful writing (i.e. have a child-like character embodied in one of the heroes, ala Cheetor)
So, thoughts anyone?
For my part, I'd argue no, a TF show doesn't always need human characters to be an integral part of a show or series. I'm aware of the opinion that a show needs human characters in order for kid's to 'see themselves in the adventure,' and relate, but consider this...
When I was a kid the robots were what interested me. Cybertron is what interested me. The robots were the characters I'd wanted to see myself in. When my friends and I 'played' Transformers on the playground at school (toys having to remain at home in fear of confiscation), no one ever pretended to be Spike; you were Optimus, Sideswipe, Prowl, Hound, Mirage, etc. When it was time to play with the toys....Nobody ever pretended that Spike was around; human characters didn't exist, and the only time they were remotely cool is when the humans themselves transformed into heads, guns, or engines!

Beast Wars proved in spades, that you don't need human characters to have a successful series, I'd therefore argue that what is really needed is skillful writing (i.e. have a child-like character embodied in one of the heroes, ala Cheetor)
So, thoughts anyone?