So you would be familiar with what you do when your tank is disabled and there is no chance for recovery? The reason there were a lot more burnt out M1s than CR2s in OIF was that the British did not have the American tempo of operations and ground to cover. If a CR2 was disabled for any reason it could be recovered. The Americans did not have this luxury so had to self destroy many M1s that they could not recover and could not leave behind.
The reason is far from the level of operation, it how the tank is used and in what situation it occured, you can hardlY blame this issue on the ground to cover considering the operation was managed by the US, this is a totally unfair comparison and excuse, as for recovery again this is a unfair comparison as both armies have armd recovery, its down to again the operaional use in the field. the US had more armd recovery options than the UK,