I mean, the ratings were bad, but they weren't terrible.
I think every network looks to have lower-rated shows than it returning:
Scream Queens, Bob's Burgers, Bones, Sleepy Hollow
Real O'Neals, The Catch, American Crime
Elementary
Grimm
Possibly Carmichael Show.
Second season shows:
Cancelled - Agent Carter, Galavant
CSI Cyber
N/A
N/A
Mysteries of Laura
Renewed - American Crime, Blackish, Fresh Off the Boat, Murder
Madam Secretary, NCISNO, Scorpion
Flash, iZombie, Jane
Empire, Gotham, Last Man on Earth
N/A
First season show renewals:
Catch, Dr Ken, Quantico, Real O'Neals
Life in Pieces. Most of their freshmen are still question marks technically.
Crazy Ex Girlfriend, Legends of Tomorrow
Lucifer, Rosewood, Scream Queens
Blindspot, Chicago Med, Shades of Blue, Superstore