I'm open to some uniqueness with each weapon type, but I agree that weapon attacks should not come freely as bonus actions. If they want the "signature move" for each weapon to be different, that's cool, but it shouldn't create a whole bunch of extra attacks, it should just create different types of attacks to choose from with your standard action.
Honestly, these abilities aren't that powerful.
The charge with the spear seems pretty good, but it's hard to use it sensibly, it requires a straight path to the target.
From what I tested, a simple stone is enough and the whole skill is useless.
The other skills are not very powerful either (I'm talking about bonus actions) and definitely not worth using if they were full of action from what I noticed, they are only on two-handed weapons, but it's still a much better idea to just wear shields.
The only too strong skill seems to be mobilization to have advantage until the end of the round, costing only the move is potentially a bit too strong.
