@Peter <de>: Sorry, perhaps I shouldn't have assumed anything was obvious. I'm always concerned about being too long-winded, and in this forum especially, since Katja's appeal, I feel I have to take up so much space just listing enough evidence to satisfy the LEO team that I ought to cut any further comment short if I can, and give them credit for a certain amount of common sense. But I'm happy to be more explicit if you don't mind taking the time to read.
First, 'bog' is rarely used without 'down,' so 'bog' alone isn't very helpful. Second, entries should use the basic form 'bog down' rather than the participle 'bogged down.' Otherwise there would need to be separate entries for 'get bogged down,' 'be bogged down,' 'become bogged down,' etc., which would be a waste of space. Also, users searching for 'bog down' might not find all the 'bogged down' entries unless they had had the forethought to search on 'bog* down' instead; but users searching for 'bogged down' should now (at least in ndict) get a Canoo hit for an inflected form. Third, 'get bogged down in details' is an isolated example, not a fixed verb phrase. Leaving it in could wrongly suggest that 'details' is the only object normally used with 'bog down.' Fourth, 'get bogged down with emotions' is not only an isolated example but a bizarre one, because 'with' is a less common preposition and 'emotions' is a far less common object. I'm sure no one would ever miss that phrase if it just quietly vanished.
The transitive sense with a personal object ('bog so. down') is pretty uncommon. If LEO has the time and space to want to list it separately, fine; I was just assuming that, given LEO's limited resources, getting the basic senses in there in their standard form would suffice.