Well, now that you ask...
MNK has A+ H2H skill: 424
BRD has B- Dagger skill: 388 (-36)
MNK gifts include 41 accuracy
BRD gifts include 21 accuracy (-56)
Godhands have 269 H2H skill plus 30 acc on the augment (-355)
Master levels give 88 accuracy to BRD (-267)
SV Blade Madrigal (with merits) gives 238 Accuracy to the BRD (-29)
So...I guess if the BRD also has Honor March, or a second Madrigal...then you're right. A SV BRD with multiple accuracy songs would have more acc than an ML0 MNK. Seems like a bit of a fallacious argument to make to me, but...sure. A BRD who's ML50 and casting SV Blade Madrigal + Honor March would have more accuracy than an ML0 MNK.
Assuming the MNK wasn't under focus, and had the same accuracy on gear, which everyone knows would never be the case since BRD TP gear sucks *** for accuracy and basically every piece of MNK's best gear includes heaps of accuracy.
So um...yeah. I don't think an ML50 BRD is likely to have more offhand accuracy than an ML0 MNK, no.