Oh, psh on you. Your blanket is just as awesome as mine, if not more so. I tried that pattern once, but the 20 row thing didn't suit me... I like simple patterns I can keep in my head. Not to mention some of the rows are insanely complicated, and after having to tink them several times because I'd gotten confused between the K2 P2 and K3 P2, I threw in the towel. Yours looks amazing, and I think it's easier to see the hearts IRL.
It's amazing that someone could be able to use such tiny things. Your hat looks just fine, I doubt anyone will notice any trouble you had with decreases.