Your extrapolation is incorrect. The following description matches the factual components of what you see as unacceptable, but includes the missing context from

Your extrapolation is incorrect. The following description matches the factual components of what you see as unacceptable, but includes the missing context from the post that makes the engineer's actions acceptable rather than unacceptable: It was sent to the customer to collect experimental results while investigation continued in parallel. Per the post, production mitigations had already been put into place, and the customer was knowingly participating in an investigation of an unknown issue. The customer provided the requested experimental results.