I didn't read your whole post but I'll just reply to the general idea. Sometimes it's annoying like in games like Super Smash Bros. when people say "OMG YOUR ONLY USING HIGH TIER!!!!", but in Fire Emblem it's just to show who are good units... Nobody ever said "Wil is in low tier, he sucks." They say "Wil isn't good because of _____ reason". When someone says they like a "bad" unit, it's rare to see someone talk about tiers in reply. I don't really mind tiers in Fire Emblem really.