Of course, but at least Picard was still aware of who he was, he didn't "lose" his memories or "time" or anything like that. I didn't get that with Seven, I really had the impression she regressed to the 7 or 8 year old Annika she was when she was first assimilated.
All that was written was this (at least as I have it in manuscript):
With her beauty no longer blemished by the biomechanical scars of the Borg, Seven looked up at Nanietta Bacco with the tear-streaked face of an innocent.
“My name is Annika.”
I can see how that's consistent with the idea of regressing to a child, but that's hardly the only way to interpret the very minimal information we were given. And there's nothing in that passage which indicates she's lost her memories. She's definitely undergone a fundamental change, but not necessarily the one you think.