Asserting status ok here does not check whether the remote command succeeded, rather just asserts that a response was received. 

https://github.com/mongodb/mongo/blob/0ff5e5e7cc09c31d3fe260cf6602f461e6e20bb6/src/mongo/s/commands/commands_public.cpp#L73

This ticket is to investigate whether checking the response for errors is correct and whether this breaks tests.