Just because Guns can be powerful, doesnt mean they will be....this applies to all the weapon skills. It is easier to make a bad Energy Weapons character then it is to make a bad Guns character, this doesnt prove Guns is the better skill, just that it requires less work to be effective. Both weapons classes have their good super weapons.
Well, it kinda proves that Energy Weapons are a worse skill than Guns. Because a skill that requires more work must yield more reward. Otherwise it's pointless, unless maybe it's for pure roleplaying value
I've tried to make a pure-EW character on my first run. I constantly ran out of ammunition, EW were costly and I ended up having Guns at the same level, if not higher, than EW. If I hadn't try to raise EW, I would have been much more effective with Guns.
In previous games Energy Weapons used to be expensive, harder to repare, not available early, munition was scarce but they dealt much more damage. Now the disadvantages are all still here but the damage was nerfed down. For EW to be effective, they must not simply be on par with guns. They must be superior to guns, because that's the whole point of EW.