The weather was up, but has now disappeared, so whoever posted it must of changed their mind about contributing.
The low cloud shouldn't be too much of an issue with an ILS available, and as is often the way at Dundee, when the weather is bad you get an easterly wind, so it would have been a headwind for the only approach available.
I suspect the freezing level would have been below MSA, I'm sure it's one of these where there will be many contributing factors rather than one simple answer. No mention of a mayday call in any reports I've seen, but it's early days and reporting is very poor on these types of incidents, one report still talking about a twin engine cessna 172.