Now, I reside at the other end of the South Stand from where the Hall and Senior tries were scored, so have no idea about Senior but I did think (even from my far away view) that Hall went to ground early on purpose, as otherwise he was risk not making it or being put into touch. In doing so he hit the deck and then lifted his arm before the Hull tackler was able to touch him, which not being tackled, he is entitled to do, and then reached out and scored as the Hull tackle came in.
As for forward passes, the last pass back from Webb to Senior to score was forward but the pass to Rob for his score was flat for me and not forward.
Talking of forward passes, I think the Saints v Quins game had two blatant forward passes for their two first half tries and Child and his 'touchies' should really have picked up both!