No, it's not cool even if it's just one person. The point is that you should absolutely be upset at the bank for arbitrarily banning someone for no reason, but not at Peter Thiel or Palantir, since it being just one non-high-profile critic means there's no good reason to think they had anything to do with it.
Why? It’s the regulators who are to blame for that, not the bank.
This leads me to two possible, non-exclusive outcomes: the links to China are tenuous, and the attribution is flimsy (e.g., they accessed a machine at 9 am Beijing time!); or the report implicates the system itself as unauditable by design, which was bound to happen given the design of the intercept tools.