Socratidion believes they're actually passive imperatives, not active infinitives. Passive imperatives of transitive verbs (as opposed to passive-form imperatives of deponent verbs) are pretty damn rare in Latin, but I think they're permitted when the sense is middle. So he could be right.I'm sure it does refer to the well-known oak-and-reed metaphor, but that it was somewhat mistaken, as it should definitely have been in the passive.
I think he is, really. It doesn't make sense otherwise. Me stultam.So he could be right.