It's not like your going to lose the game if you pick EWs
That's not the point.
You can still complete the game with the skill, no doubt about that, you could probably complete the game using only the laser pistol.
The point is that in previous games it has always been a weapon skill above the others.
Rare weapons.
Rare ammo.
Expensive to buy and repair.
And more powerful than the rest.
In this game they changed the concept and nerfed them.
So it's not impossible to play an Energy Weapons character, it's that the weapons are no longer what they used to be.
And some of us who loved energy weapons in previous games are irked about that.
Energy weapons IMO should not be a weapon class that's suppose to be on an equal level with Guns.