I think we should talk power level. Reading Nature Lore, it's cool, but far from OP, and I really don't think its enough to be the core of a tradition. Ars Notoria is kind of the same way.
In contrast, I know there were complaints about Sihr being too powerful (which it isn't, it's definitely on par with Elementalist/Vitkir/Folk Witch/Gruagachan).
I think we have two tiers going on right now; the "cool supernatural ability but not really doing magic" tier and the "fully fledged magical tradition" tier. If we tone everything down to the lower tier (which began with disqualifying Sihr) we will have one kind of saga, if we uplift everything to the hedge tradition tier (which would mean adding something extra to the Forest Paths and to Ars Notoria) we have a different saga, still much weaker than a Hermetic Magus saga.
I think if we try to combine both, nobody will be happy. So we should probably settle on one or the other.
(To be clear, I have workable concepts for both. But I'd prefer the fully-fledged hedge traditions.)