Plus the adding the fact a second player was involved made it a definite yellow

Maybe you're right; I'm slightly biased I'll admit as an Englishman living in Italy, I want to see the Italian teams do well !

Joe he landed on his shoulder first...first point of contact being back or shoulder=yellow

The ball is touched down for a 22 dropout and that's HT.

But as the player was on his knees there was no momentum, and it was clear that he attempted to raise the players legs above horizontal

Asquith is hit out the back and he makes a half break. He grubbers ahead

Free kick to Scarlets and they'll have another scrum

Just my opinion though

Referee should have taken into account that the 2nd player influenced the Scarlet player's body movement, thus mitigating factors that should have really contributed to it being merely a yellow

Barclay has a run up the middle and almost gets through. Scarlets move it wide and Evans again knocks on