Tom and Jerry was more Chuck jones than hanna barbera. they were the release company. you can see similarity's between them and the road runner/ wild e Cayote cartoons from warners.

And yes animation is a dying art form mostly outsourced now at least in japan if not the u.s. as of yet. hand drawn cell animation is nearly dead as well, being replaced by computers. Which makes it all the more important for these classics to be restored for posterity and be left uncut and not censored Like disney and warners have done before.