Let's look at this realistically!
Had Kovi followed Lewis after the move and been able to overtake both Massa and Junior, then I would join the legion of forumers in condemning Ron Dennis's actions. However, Kovi had reached the limit of his pace and the only achievement he could have made was to hinder Lewis's chances to win the race.
McLaren made a gamble when they did not refuel Lewis during the SC period. They had fuel for several more laps, meaning that Lewis's final stint on soft tyres would have been a short one, enabling him to be quicker. This worked and McLaren won the race.
Kovi's contribution to the results was a fourth, and whether he was given any team orders or not, he would have ended up coming fourth anyway. The only one who could have suffered was Lewis had he been forced to follow Kovi for several laps trying to pass him as he would have buggered his tyres through graining.
So there you have it.