I don't know if anyone else realizes this, but there is no one answer to any of this. Wheel what you brought. Good driving can make up for lack of equipment to some degree. If you have it and never use it then sweet. If you need it and don't have it well, nothing you can do about it.
Good to have? Yes
Do you need it? No
Can you wheel without one? Yes
Does it greatly add to control? Yes
Does you clam shell blow up immediately? No
Will it one day? Maybe, there are tons of variables.
Can you do the gate open/open? Yes
Does the ARB strengthen the front diff? Yes
Does it increase possibility of snapping a CV? Yes so do bigger tires
Can you snap a CV without a locker? Yes
Is a winch useful? Yes
Is this supposed to be funny? A little bit
Should you feel personally attacked by this? No
I have it and spent a bunch of money on it, so I am going to use it. I like trying some stuff open, but there is something satisfying about locking up and crawling over a tippy obstacle.
The most important thing I have learned about the front locker is you only use it when you need it. Don't turn with it on unless you have too and turn that shit off as soon as you don't need it!