They didn't because they didn't. Harry is wrong!
That's not right Harry. It was stupidity more then conspiracy to stop Webber.
I have live timing and the race saved on my computer and just went back and checked your numbers. These laps include lap traffic....I dont see a tyre problem emerging and certainly no 2.2 seconds off lap 52 (He pitted on lap 55)
Lap_______________Webber_________________Alonso_____GAP
45________________1.27.321________________1.26.963____7.1sec
46________________1.26.772________________1.26.999
47________________1.26.674________________1.27.026
48________________1.26.447________________1.26.977
49________________1.26.263________________1.27.288
50________________1.26.009________________1.27.087
51________________1.26.477________________1.26.923
52________________1.26.262________________1.26.768
53________________1.26.786________________1.26.437
54________________1.26.890________________1.26.439____12.0sec
55________________Pit_____________________1.26.600
So look at the actual times respective drivers were posting 10 laps before Webber's stop and, sure he had a diff problem but there was nothing in his lap times to suggest he was in trouble
Even if he was 2 sec a lap quicker, for the final 12 laps, and pit stops takes 17seconds...that is only a net gain of 7 seconds assumiong he doesnt lose time overtaking the 3 cars he lost position to....STUPID MOVE BY RBR!