That Last season- Just questions-Spoiler comment

OK.. Few things with Morgan getting the intersect I had no problems but here are mine..


1. The computer they were able to fix it after the Gretas had the intersect removed right. now if they wanted to restore Sarah Memories couldnt they have did that? (same thing with Morgans memories)

2. The Bomb at the end couldn't sarah who HAD the intersect like open the box since it was same computer from ep 1 chuck defuse then use the glasses.

3.It is never explained how much sarah lost did she just lose all 5 years or was it a complete throwback i am asking as so much was altered with her parents etc in those years.

4.I understand Subway was their sponsor at the end.. but thing is this at the end it says new owner.. so what did or where did chuck go? i mean we know he didnt return to CIA we knew casey went chasing a woman, and we knew chuck sister randomly moved to chicago; soo did he just sell it then go back to the buy more what is his intentions what are they doing for money... i mean that last episode was just ummm

Honestly I loved the series season 1-4... season 5.. just basically ruined it for me and i muscled my way through it even though i honestly was disappointed in what i was watching