[Paul]

Angeblich dachten die Entwickler (oder der Publisher?) dass man alle Probleme mit dem Day-1-Patch rechtzeitig beheben könnte und es keinen Grund gäbe das Pressen der physischen Datenträger bzw den Release als solches zu verschieben...

EDIT:
BTW, das ist keine Spekulation von mir, das steht wörtlich so im Press Release drin:

First and foremost, we would like to offer our most sincere apologies for the game’s technical issues. In its present state, XIII does not meet our quality standards and we fully understand players’ frustrations. The pandemic has impacted the game’s production on many levels. Pivoting to home working for the teams has added unexpected delays in the development schedule and the QA process. We hoped we would be able to provide a Day One patch fixing all the issues but the development of this update is taking more time than expecte.