Fire was frontloaded, with Typhon/Crom Cruach/Yatagarasu/Cthugha coming in the first ~6 months, not counting early reprints pushing things back. And then Wrath in November. It also doesn't help that the Typhon/Garuda reprint was bumped up from December to August and didn't get a reprint-reprint later like how the other early reprints did.
Light was the opposite, having had to wait from Phoenix until... Phoenix reprint, then Sphinx in November. And while Pride round 1 occurred in that timeframe, there were no weapons or eidolon from it.