The argument is just that, objective. However, I'm more likely to call a kenyan going out in 52 to try and run away from his competition for the win a real tactic/strategy (Again, maybe pacing wasn't perfect, but the idea) vs. Ches slowing down to 75 so he can kick with 200m left...
Your comparing 2 totally different situations as well. Ches slowed down to win as easily as possible, Cheruiyot sped up to win out of NECESSITY, and perhaps tactically run away from the race. Was it a bad tactic? He Ran 3:52 and lost, as compared to Ches (3:56miler) who ran a 4:15. Sure, you can make the argument that Ches was just running a "tactical" race as well, the difference? One race produced a World Record, while another produced a 25sec final 200m.
You can argue that both were equally exciting, and I'm sure to some, they were, but, I guess I'm tired of athletes plodding along because they don't feel like racing the entire distance, sprint for 30 seconds, and call it race effort.
Go out and run a 3:25 1200m and then sprint all out, i'm sure a decent amount of athletes would run the total 1600m in 4:20 or better. Now go out and run a 52 400m and continue on, I assure you not many will go on to run a 3:52.