Hi Christian,

Yes, there is an issue here.

"superficial", according to the Oxford Dictionary, means "appearing to be true or real only until examined more closely" , it means too  "not thorough, deep, or complete" , aso.

i don't know these data mappers enough, but it seems to me the idea is the opposite: the syntax is virtually the same for all mappers, the syntax is very similar, aso,  not a "superficial" similarity !???