Rethink of the Talent Aquisition (And fixing the respec problem)

Since everyone wants the ability to respec the talents I would suggest another way of getting talents that would not be based on point per level acquisition, but that every talent upgrade would be based on performed action while playing.
This is the most RP and rewarding way of playing the game, which would probably make players play a bit more only to farm their talents.

Resources talents would be obtained by gathering named resources.
Exploration ones by walking, swimming, and breathing while in the wild.
Hunting by skinning, butchering, killing wild animals.
Cooking / Farming ... well easy ...
And the same for every single branch.
This way you wouldn't worry about investing in the solo one since it would advance by itself

There could be more precise and hard tasks to unlock some advanced talent, and easier one for the first ones.
And you are already tracking most things you might need with the accolades so it wouldn't be that hard to work around that.