Well, like he said himself
"it’s only appearing first on PlayStation, rather than being a lifetime exclusive. In fact that was the case with most of the other games of the night."
Microsoft invests more to get timed exclusivity for fewer but bigger games like Tomb Raider and Sony invests more to get timed exclusivity especially for indie games. Nobody shows with that he takes Europe more serious, they only show that they have a different philosophy about what they "moneyhat" and in the end, most PS4 games will be on XBO and most XBO games will be on PS4 but only at different times.
But it makes sense that Sony can show more games (I have no clue how many games Sony and Microsoft showedl) if they have deals for more smaller games. But this doesn't make the games worse on XBox One when they will come to XBox One maybe 6 months later.
Btw just to mention it, Microsoft got criticized a lot last gen for these timed exclusive deals for indie games and Sony does exactly that now 
