The argument between Hiccup and Astrid in "Heather Report Part 1" might be painful to watch and not our favorite Hiccstrid moment, but I feel it’s really important. For that reason, I am glad the writers included it in Riders of Berk. The tensions are even more potent since it's Hiccup who completely messes up - he’s not the perfect Dragon Master all the time, after all. Crushing after Heather to the point of completely dismissing Astrid and even backlashing against her is a huge mistake on Hiccup’s end. Granted, Astrid wasn’t responding nicely either, but she definitely had a point and reason to be angry at him.
Through episodes like these, we get to see a more rounded relationship between Hiccup and Astrid. We watch the awkward scenes when they first fall in love, subsequent scenes when they’re in a relationship, the cheerful scenes when they tease one another, the exciting scenes when they’re in danger and fight for one another, the scenes where they confide in one another, and… the scenes where they don’t see eye-to-eye. All in all, because of episodes like “Heather Report,” we get a very good look inside the life between Hiccup and Astrid.
But man just look at their facial expressions here. Ouch.