But it is!
It's not.
Very powerful effects that can make or brake the battle happen on random dice, like various disabling attacks
Stuns/incapacitations can be mitigated by either:
Passing a Fortitude roll (high CON builds)
Thick Skull feat (at least 10 CON builds)
Locus of Control feat (Psi builds)
Bullhead pills (builds with at least 80 Biology skill)
Acting first before anyone can stun/incapacite you (either stealth or high initiative builds)
Sucking it up and surviving the duration (tanky builds)
Shaded visors (only flashbangs)
special sniper attacks from afar, etc...
Besides the fact such situation happens maybe twice/thrice in the whole game (Lurkers base and Warehouse mission) , can be mitigated by either:
High HP pool (high CON builds)
Tactical vests with ceramic plates or metal armors (tanky builds, but
any build can equip one)
Amplified high frequency energy shields (
any build, but those with electronics especially)
Acting first before Sniper gets to fire a shot (either stealth or high initiative builds)
And most of them do not have proper counter that can be used by most of the character builds (only some specialized builds can get protected from some of the effects).
I just listed 7 counters for stuns/incapacitations that work with a wide variety of builds, and 4 counters to Snipers, 2 of which will work on
any build.
Every build needs some kind of defense against everything. If it doesn't have it, it's just a bad and unreliable build that was made with savescumming in mind. Don't blame the game, blame the player.
Game is very very very offense driven in this regard and with kind of the options that are available to the player.
Player has a lot of options to choose from, a lot more than any enemy in the game.
This leads to battles that can be both easy wins and easy losses at the same time. Usually, initiative check and luckily roll will determine what kind of battle it will be.
Invest in DEX/AGI to have very high initiative then, luck factor will be reduced considerably. If you fail, have a plan B and even C.
Or use stealth to start (almost) every battle on your own terms. If you fail, have a plan B and even C.
Or be tanky enough to survive the first turn no matter what.
See, it's all about planning your build so it can deal with every situation.
This is additionally amplified with game focusing only on single character vs many characters. If it was game played with companions this effect would be greatly diminished.
On the contrary, enemies don't get any preparation time, nor do they have optimized builds (well, Carnifex kinda does) or human intelligence.
I would say the player has a huge advantage.
Personally I do not mind. I am determined to win, using all options given to the player, including save scumming.
No, you just made a build that has to rely on savescumming to get by.
Nothing wrong with that, but you are resposible for it, not the game itself. No one is saying that Ironman Mode would be possible with all builds, it's pretty obvious it's only for those that rely on luck as little as possible or even not at all.