Been a while since I thonk'd deep.
Think about it. Xaku Prime is three or four Prime™ Warframes duct taped and superglued together. It worked.
People looked at it and must have went "If it works, it works.". That, or Ball-Ass threw together a bunch of scrapped projects together hoping it would work a week before the quarterly new-meat-doll presentation because he had a hangover so bad it lasted for months and deprived him of actual ideas.
Then these patchwork of a thang got reversed engineered into a normie Xaku without an attempt to trace the history of this fucko cuz it's cheaper that way. Again, if it works it works.
This is some truly utilitarian commu-socialist behaviour right here.