The reason why I think the translate.blesta project takes more time to translate is because I have to use to click to go to the next page,
I often contribute to projects because I like my solutions to be in Dutch and Dutch isn't always available, Editing straight into a text file or use the POedit app increases the productivity because my hands can stay on the keyboard and it's just 'go with the flow'
I thought that too so I talked to several people I know who also have small buz. regarding internet/hosting/design etc and they all know blesta and several of them use it for their english speaking clientele but dont use it for their dutch clientele (audience) because the translation is such a pain in the .... And I agree, I recently purchased myself a license for idevaffiliate and instead of translating that one to dutch I simply purchased the dutch language file.
I also believe this is indeed a great option, and wmaybe even integrate a checkbox to 'use google translation'. I often use google to translate api docs to english (from dutch) and google often nails the translation, at least dutch <-> english.