I'd have a lot more sympathy for the saints club about the officiating if they had also complained about the officiating when they benefitted from a massive forward pass in our recent league encounter!
I'm not sure about all the calls, as has been mentioned a none try on the 3rd minute doesn't explain their game going to pot. Lineham scored a legitimate try though and a definite yellow for a swinging arm on Toby King was also missed.