Full Metal Alchemist - the flaws?

*Warning spoilers*

I've been rewatching it recently. Minus its tracking off from the manga story, if you look at the series at itself it is quite brilliant. The tragedy is plays is quite brilliant. And when the comedy comes its just hillarious (the episode with Al versus Roy). Just that when you watch don't expect a lovey dovery ending or feel. The series central theme is tragedy. You will cry sometimes watching it (Nina).

The parrelel universe was a real bad part of the series. Ridiculuous concept. But other than that as an anime series, its quite perfect. Are there any other flaws in this series?

ive only seen 2 eps of it, and already something was wrong. I saw one near the beginning where ed and al were fighting, training, i belive, and the little guy throws the armor dude in the water. Victory for ed.

Now in another ep, hell if i know which, Ed gets really pissed at Al for messing around with water (rain?) due to the fact that his blood circle thingy would erase, therefore killing him. I try to have an open mind, but was that a mistake?