Omegaverse is triggering me a lil bit

i don't like that in the omegaverse, male omegas are called wives or mothers if they are married or if they give birth.

what the fuck does it mean. they can be called husbands at least. biologically omegas are usually frailer and prettier (feminine features), petite. is that supposed to mean women are all of those things?

its really been bothering me
ik its just a fictional world but i wonder if it was done on purpose, to create a world with a flawed system or if the person who started this was misogynistic.

and this:
http://www.mangago.me/read-manga/there_s_no_way_this_is_fate_newlyweds_arc/

i don't get the thing about them being the 'wives'. especially when the omega went into heat. are women inherently submissive and needy? at the mercy of the husbands?