You wont find a turbocharging book that says not to use one.
I wouldnt use the Buick TR community as the gospel on not to run one.
Pretty simple.....In boost...lift off gas...turbo is still compressing air...air column backs up loads the compressor....forces its way back past the compressor whell/housing...in the Buick world some think this is acceptable because they didnt have failure or problems..............
Jason's comments are true, but I would take it a step further.
With a stock GN, the components are "sized", or maybe designed, to not to have the air column to put loads on the compressor wheel when rapidly closing the throttle blade. When you change this relationship with a larger turbo, better flowing IC, open air filter and other items, you can certainly hear the air column coming to a rapid stop.
In a drag race situation with lots bigger turbos as well as more air flow, rapidly closing the throttle is not normal, and like others, I have been aware and conditioned NOT to do that.
On the street, it is a different situation with larger turbos, and the throttle can be rapidly closed many times, even in just a few blocks.
So my take is if you "mess around" on the street lots with a large turbo, that would be a good candidate for a BOV, for track use, not so much, IF you are aware of how to minimize rapid decell situation.