I did have a settler steal my power armor when Sanctuary was attacked and I was at the workbench; afterwards, the head was missing.
To me, the flaw in this game really is that there is a huge disconnect between the way loot and rewards level up and the way you actually play the game. If you’re one of the few who plays the way the developers apparently thought you should play, hitting each main quest stage as you reach the level it seems to want, and thus finishing the main questline at around level 30, the loot is fine. Playing on after that gets hit and miss, but that’s not the big problem. The big problem is that no one does this, after the first time through. Even the first time you play, the lure of the open world is thrust in your face with far more force and power than the main quest stuff, and certainly for me it made me explore a lot more than it made me beeline to Diamond City.
And, um, if you explore, and take your time, by the time you get deep into the main quest, there’s nearly nothing left to find that will improve your combat ability. Between modding, quest loot, and legendary drops, you rapidly hit a point where none of the weapons or armor you find is interesting. The DLCs help, but even they can’t counter the fact that with leveling and perks, modding your weapons means that you will almost always have something better than what you find.
This is exacerbated by the dreadful weapon hierarchy they have in the unmodded game. Pipe weapons suck, and there’s zero reason to ever use them after about the first hour of the game. The .38 ammo-using stuff is totally useless, and thus .38 ammo is only useful to sell. Many of the variations on weapons, like .45 sniper rifles, are useless too, as .308 or .50 weapons are much better. The lack of suppressors for the .44 pistols means that pistol builds (which will inevitably be based on stealth/suppressed weapons) can’t use them. The 5.56 weapon is some bloated stovepipe Lewis gun thingy, and the minigun is a waste of space.
Every game where I’ve not used a weapons mod has ended up with nearly identical weapons loadouts, because there is no effective variety. To me, this is a far more serious problem than the role-playing or narrative flaws. If this game had a better weapons system and more useful weapons choices, it would be damn near perfect as an open-world shooter.