No, if you're going to have a 'guard of honour' you have it either before the match or after. Not during, simple as.
Well, clearly it's not as 'simple as' because Chelsea did it a different way.
It might be classed as 'unusual' or even 'unprecedented' but it doesn't make it wrong.
As I said, it didn't cause any problems; it didn't change the result; it was done with the consent of Sunderland.
Sunderland and Moyes were gracious enough to allow Terry's final appearance to be marked in a unique and fitting way. Why are you incapable of accepting it?
Location: South Cambridgeshire
130 metres ASL
52.0N 0.1E