6...Bb4 in the Sveshnikov Sicilian: Kudrin vs Murey

I have been practicing 6...Bb4 in the Sveshnikov Sicilian for a few months now.   The move has stunning surprise value, and a nice dose of poison for the unprepared.  If White plays well, Black can expect to give up a Bishop pair, and sometimes an absolute Bishop pair, usually with quite playable positions.

In this game, with 8.Nxc8+ Sergey Kudrin took up Mr. Murey's offer of a pair of Bishops and won without too much difficulty.  Black did have his chances, however.  Is Kudrin's move a refutation of this line?   I don't think so, but I'd like to see more tests.