SuStel:

> It's all about whether the locative is the direct object or not. If it is, it's the destination. If it isn't, it's not the destination.

I think I understand your analysis, but this is what confuses me:

In the {Qo'noS nujaHmoH}, the word {Qo'noS} isn't the direct object. So, since the direct object is "us", and {Qo'noS} is the indirect object, how can it be interpreted as the destination ?

Your analysis is wrong. In Qo'noS nujaHmoH, the direct object is Qo'noS and the indirect object is the elided us. When you use the prefix trick, you make the verb prefix agree with the indirect object instead of the direct object.

-- 
SuStel
http://trimboli.name