Spoilers for episode 4.
Seriously you thought the whole mersande plot was remotely plausible?
1) In the middle of a giant sea battle the greyjoy finds, captures, identifies, and detains a single woman and delivers her alone to be the focal point of the queens ire...
2) Or how a bunch of "scorpions" at sea, on moving boats, can completely kill one dragon and scare off another, but a the entire kings landing of them, along with the same fleet, couldn't manage to hit the dragon once?
3) a bonus that the dragons flames now can not only burn things but knock over buildings and huge stone walls, but not people standing next to the same flames. If the dragons breath was that powerful all along why the hell was there any need for an army?
4) after episode 3 and the battle, somehow each of the armies lost only half of their forces. Wtf? So during the last battle they just sent in half of the dothraki? Don't you think somewhere in the plotting / planning scenes for episode 3 they should have at least mentioned they were splitting the armies? Based on watching episode 3 there should have only been like 100 people left in winter fell. Since the only people left fighting where the characters with infinite plot armor, all the extras were dead..
Episode 4 was full of pure TV writing and grandstanding. I was willing to look past 3, but 4 was much worse.
My two cents