Nope.
Ediacaria, Cyclomedusa and Hiemalora were not worms.
I'm surprised you're not quoting John Woodmorappe. He seems like someone you'd be interested in.
There were a few weird fossils which never made it to the Cambrian so they are irrelevant to the discussion. As I said, all this Vendian stuff had been discovered by the time that Eldredge and Gould gave up on Darwinian evolution - and for good reason. In fact, the latest major discovery in the field has been the discovery of a vertebrate fish in the Cambrian adding to the number of phyla which have no ancestry before the Cambrian. In other words, the doo doo is getting deeper, not shallower for evolution.