Sage will probably have a flash back this coming episode, to show her relationship with the Burkes, and maybe even her childhood, because while we know she was a foster kid before she was adopted, we don't know what she's been through.
We don't need another flashback showing her relationship with Chad because we've seen all we need to know.
We got a flashback with Jill to show her relationship with Lana, who we still have more to find out about (I don't believe her involvement in the story has no consequence).
We don't need a flashback to show us Josy has fucked other guys in the past, but it's clear she has.
We got a flashback with how Josy, Maya and Derek all knew each other.
We don't need a flashback as to why Tybalt is such a fuckhead.
And so on.
This has nothing to do with me disagreeing purely because it's a criticism levelled at DPC (I have stated many times that I didn't like much about AL, and the ending was boring as fuck). No, this is about me disagreeing because it's you.