Maybe it’s just worth recapping the time and conditions when this occurred. The ATIS at 0356Z gives FEW005, SCT007. Hardly CAVOK is it? Not sure I’d be able to see either the runway or another aircraft with that cloud reported.
Reminds me of an exchange at LHR many moons ago.
”EIN12A, report British Airways 737 ahead in sight.”
EIN - ”We have them in sight.”
BAW - “Er, we’re in cloud.”
EIN - “Yes, but we saw you go in there”
/sorry for the drift.