I’m not unhappy that Starfleet Academy has been holding back on callbacks of Discovery legacy characters.
As we saw with DS9, sometimes it’s better to let the new characters have some time to establish themselves and settle down before confronting them with former main cast legacies. Otherwise, what’s intended to help a new show get established can sometimes do the opposite.
Can anyone really cite a first season major legacy character appearance that boosted a new show and is considered a strong entry in hindsight?
The only one that comes to mind for me is Riker and Troi’s appearance in ‘Nepenthe’ in season one of Picard.