how much did they pay?
I'm sure it's easier to translate them - they're very simple language - but then they need 168 pages of rules and apendices, and looking through them to find a rule is a right pain in the posterior - rules that are needed at one point are often in a completely different part of the book, and a great deal of what is in the book is superfluous padding - commentary - wasted space IMO.
DBMM could be better presented, but it's bucketloads more user-friendly than FoG IMO - FoG is a dog of a book - it is a con job - a victory of presentation over content.