About 2003, I think? I was simply comparing like-for-like. I don't think GW has changed style all that much, they are still very much heroic scale and taking that style to increasingly extreme levels if the new OK models are anything to judge by. It is a popular style that both warhammer and warmachine players really like... big hands and heads, models holding weapons that are bigger than they are. Not everyone likes it though, especially people with older model collections who preferred the old GW metals to the new plastics. I think it's a great sculpting style if your primary target audience is children, like GW's is, the more fantastical proportions and giant 10-foot flaming swords are more likely to impress them than some tiny-looking but historically/ physically accurate weapon.
I also think GW's new savage orcs look
pretty goofy too, in fact their style isn't that much different to the goblins... same oversized heads, awkward poses. The sculpting is very angular and blocky.