If oda now tries to make Admiral too strong(after what we saw in MF)...it is going to create more mess for him to handle...I am guessing...as earlier...he has to make the remaining obstacle super broken/too strong even if it causes inconsistency so that story doesn't get affected...I mean technically Luffy defeated WSC...there should be no shounen obstacle at all for them now...but then it won't be a shounen.
no inconsistency. admirals and yonkou always were on a complete different level compared to yc.
in marineford 14 yc including marco and vista + crocodile fought akainu and akainu managed to fight back and even take one of the commanders down before the fight was interrupted
akainu x 14 yc + crocodile and he was still gaining the advantage.
the akazaya are also around yc level and kaido neg diffed 9 of them at the same time.
that is how much stronger top tier is. no combination of yc1+yc2 would make admiral or yonkou break a sweat except beckman because we do not know if he is a exception.