Enough with the strawman. Every video game is an abstraction. You can't really destroy much (if any) scenery in modern games either, the graphics have simply improved (or not, depending on your tastes).
There's no traceable logic here that somehow counters my argument. Nor do you understand the meaning of "strawman".
Your argument would only make sense if there was an Overseer in a modern Fallout game that is similarly protected from gunfire underneath, and I was bitching that it makes sense in old Fallout only. Now, your attempt to put words in my mouth that way would indeed be a strawman.
That said, isometric view definitely afforded more of an abstraction. Whether you can trace a direct line from your character's hands to Overseer's head in a hexagonal environment, is about as meaningful as doing that on a board with plastic figures while playing a computer-less RPG.
The idea that the creators of the first Fallout deliberaly choose an isometric view for abstraction is bogus, 3d graphics were simply in their infancy in the 90's
Here's a generous tip in case you want to stop sounding like Todd Howard in the future:
1) A post-apocalyptic FPS with fully 3D environments and enemies, modern mouselook, realtime lightsourcing, driveable vehicles, talking heads, enterable buildings, was created by Bethesda in 1995, two years before Fallout 1 came out.
2) Modern games such as Path of Exile, Diablo 3, Torchlight 2 and Wasteland 2 all use a similar perspective out of design choice.
3) The real Fallout 3 (Van Buren), used this perspective as well.
But Bethtards have no failstate detection, so I'm no longer directing time and energy your way. Why don't you just embrace your nature, go to NMA forums, and start the thousandth "I liked Fallout 3, explain to me why you hate it" thread.