In context and defense of Shield my 9yr old and 5yr old loved it to bits. I suspect given it was on at 7pm that
1. The intended audience is younger than you think
2. Its not taking itself seriously
3. its not taking itself seriously (i repeated this one because i couldnt think of anything else to sayother than its shit if you look at it purely from an adult perspective expecting a CSI, NCIS, Burn Notice, Breaking Bad approach to super heroes)