Most others around here are noobs when it comes to Olympic history. The fact is, Olympic 5000's are usually not slow at all. Here's a list of all Oly 5000's and how far they were off the world record for their time.
year/time/time off wr
2012 13:41 wr + 64
2008 12:57 Wr + 20
2004 13:14 Wr + 37
2000 13:35 Wr + 56
1996 13:07 Wr + 30
1992 13:12 Wr + 14
1988 13:11 Wr + 13
1984 13:05 Wr + 5
1980 13:21 Wr + 13
1976 13:24 Wr + 11
1972 13:26 Wr + 10
1968 14:05 Wr + 49
1964 13:48 Wr + 13
1960 13:43 Wr + 8
1956 13:39 Wr + 3
1952 14:06 Wr + 8
1948 14:17 Wr + 19
1936 14:22 Wr + 5
1932 14:30 Wr + 13
1928 14:38 Wr + 10
1924 14:31 Wr + 3
1920 14:55 Wr + 19
1912 14:36 Wr – 23
No Olympic 5000 was more than 20 seconds off the wr until 1968. The 1968 race was at high altitude in Mexico City, not a nice place to run during the summer. Then, nothing worse than +14 until 1996.
Only between 1996 and 2012 has an Olympic 5000 been worse than wr + 20 at low altitude. London was slowest of all time.
What changed? Did the 5000 change? Did tactics change? No, only the runners changed. It's not lack of pacers, not when a 13:41 wins. It's not lack of dope either at those speeds. It's just lack of balls.
Unless a new breed of 5000 runners takes control, it is now just a junk medal that means nothing.
4:10, I haven't looked at the stats yet, but that's wr + 18, which is also pretty pathetic. Yes Uceny could have pushed the pace. Yes she probably should have. Could she have won from the front, maybe. It can be done. It's at least as effective as trying to kick from way out in lane 3 in 10th place.