I believe you are referring to the purchase equipment part. If I'm mistaken please let me know. It shouldn't populate with the kit choices. With that start, we have to develop for many types of DMs and homebrew could allow magic items for purchase during creation as with higher level starts. This could allow the chance at varying equipment choices from the purchase equipment section. So there isn't an intended filter of non-"basic" items. The list also populates based on the modules open by the player, so the list may change based on the items in those modules.