There's certainly an explanation. I'll leave it for you to decide whether it's good or not. It can't be explained at all without spoiling.

I both like and dislike FMA, and consequently it will never make it into my list of top animes. Everything else about the series is fine, technical things especially, but many the fights. God I hated some of those. I nearly ripped hair off my head and armrests off my chair because of the frustration so many of the fights caused me. They partially ruined the show for me.

However, I could still recommend this to people. My brother seemed to like it no problem, and I know many other people who do as well.