Semreh
The spilled drink was reference to A and C's post. The issue of faults being indicated as a result of wiring damage or shorting was the point. Such defects could be caused by mechanical wear, ineffective over current protection or fire/explosion damage. The less likely is moisture ingress to connectors hence the drinks reference.
Given the ACARS messages last transmitted and assuming that they were not completely unconnected with the loss.... it seems more likely to be a wiring issue than a bay fire. It seems more unlikely that there was a genuine fault with the sliding window.
Of course it cannot be ruled out that the was a cockpit glass failure and the loss of cabin pressure was not transmitted in time. I just feel given the scant amount to go on that a wiring issue is the more likely.