I said arguably because I don't have a list of the games released in the first ten months for both consoles. But it certainly did feel that way, The Dreamcast's first party line-up trumped NIntendo's in that time frame. Sega didn't even have EA on their side (well NIntendo doesn't really either). and they still managed to release some really solid sports games that sold really well on the machine.
Hahaha, yeah I'm just fucking with you mostly. It's impressive how Sega was able to support that box with such a varied range of content, they filled genre gaps with in house IP. That is something Nintendo is also going to need to do, plug the genre gaps in it's console catalogue.