Bura hasn't been in the doghouse, or your previous comments about him playing with good teammates wouldn't be valid. The organization in fact has not sheltered him, but given him every opportunity to play top 6, which means he has been playing against better opposition. Of course possession stats involve who your ice mates are -- but the possession stats for Bura's ice mates have depended on his being there as well.
Regardless, this entire discussion seems moot, because Bura's injury status is now classified as week-to-week (first time I've heard that), and Walton said that he is not expected to appear in this series. I think an earlier comment that we may have seen the last of him for the year indeed may be the case. If the Caps are fortunate enough to keep advancing, Trotz will be more and more loathe to break up the lineup as we get further into the playoffs to get Bura back in, with no assurances as to how he'd play coming off an extended absence.