I've been through that 'bog' on the south-west side of the Abhainn Strath na Sealga four times, once with a dog. I got wet once
and stayed dry three times
. It just depends on the conditions. Obviously care must be taken but even when wet I found it more 'squishy' than 'quagmire'. I've been in just as boggy places throughout the Highlands, not to mention other places, try Kinder Scout and Bleaklow, they are far worse.