I’m confused about Qur’an 7:172 – why remind us of a covenant we don’t remember?

Assalamu alaykum everyone, I’ve been pondering on something and hoping someone can shed some light. In Surat Al-A‘raf, verse 172, Allah recounts how He brought forth the descendants of Adam and made them testify, asking, “Am I not your Lord?” and they all said, “Yes, we testify.” The verse then says this is so we can’t claim on Judgment Day that we were unaware. But here’s what’s bugging me: if we have absolutely no recollection of this event-like none of us can remember it-then what’s the wisdom in citing it as a proof? It feels like we’re being held accountable for something we weren’t conscious of. I’m trying to wrap my head around how this serves as a reminder if the memory isn’t there. Jazakum Allahu khayran for any insights.