Section 10 rule 4 states:

"Heading the ball 4. It is illegal to head the ball in a forward direction."

Any refs care to clarify as there is no mention of the word deliberate or accidental in there?

What's an involuntary tackle?

Bowen was tackled as soon as Atkins laid a hand on him, should've been a penalty. I also think the player who headed the ball was stood infront of the passer so should've been offside. Oh well.

That passage of play was the most colossal pile of refereeing bull that I've ever seen and the fact the video ref allowed the try showed us how vulverable this system is. Conspiracy theories to one side how comes all the officials broke down at the same time? We all saw it was everything but a try. The rules are simple and they complicated them by trying to interpret them in a clever fassion, common sense just evapourated.
Instant insanity - just put the officials under pressure

charnley was penalised in last years GF for the same thing

No he was not.

Charnley got penalised for dragging the player over the line.

Atkins was pushing Bowen which is not illegal but dragging a player is. Fact the tackle was complete on Bowen once Atkins touched him and then pushed him over is another matter.

My initial thought was that Bentham bottled it & sent it to the VR knowing full well that he couldn't adjudicate on a forward pass & thus all he would be able to look at was the grounding, which, in isolation, was ok. Result: try.
I'm still not convinced otherwise - here's hoping the chairmen grow a collective pair & demand improvements before it all starts over in Feb (won't hold me breath though).