That's down to rubbish editing and direction. Watch something from the 80s like Robin of Sherwood and it's totally clear what's happening in fights, even in group battles with background characters fighting. You'll find the commentaries on the DVDs, especially from experienced fight arrangers, are really down on modern crap cinema TV fights.
"Shoddily choreographed pantomime reinforced by questionable CG", does imply rubbish editing and direction...which they can only get away with due to 24fps and tons of blur. If this stuff was filmed or rendered without motion blur at 60fps, or 120fps, or 1000fps, it would look terrible, because too much would be revealed. Revealing more of a better choreographed scene (such as
Robin of Sherwood) is much less problematic...and higher frame rates with less blur do reveal more.
In an interactive scenario, no one is directing things for my benefit. Indeed, misdirection and obfuscation of one's actions to confound one's opponents are the rule. Encounters often happen in low light or otherwise poor visibility, and the entire point may be to catch someone before they can react, or be able to react fast enough so that someone cannot get the drop on you. Likewise, camera work and scenecuts aren't there to show me where I should focus my attention; every bit of detail, every extra frame from which to extrapolate patterns and motion vectors, is valuable. Low temporal resolution, latency, and motion blur are the enemies of gameplay, and the advantage goes to those who experience the least of them.
Without any blur, I need a lot more than 24fps for motion to feel smooth, especially if I cannot guarantee perfectly consistent frame intervals (if you have frame time jitter, you draw a line connecting the
troughs to get effective frame rate, from the perspective of smoothness). Even once I have motion I feel is perceptibly smooth, that's not the limit of where I benefit from the extra information more frames provide. This is why people fuss over frame rate and why comparing film to video games is apples and oranges.