There are fewer BNW tactics that are viable for war than there are in BTS. Ranged spam + blocking units, or frigates...until what point in the game? You start seeing divergence in arty/air/nuke times, but that was true in civ 4 too.
Prior to that, civ 4 had more variance. Collateral initiative, huge swings in defensive bonuses, promotions that sped up movement in terrain, and the lack of passive city defense meant that positioning of troops was more crucial...a mistake more punishing.
Saying civ 4 combat was about massive production advertises a dubious understanding of civ 4 combat.
Civ 4 had two times this mattered a lot, and both were bad:
1. Early game, before catapults. Civ 5 destroys civ 4 in pre-siege warfare design.
2. Tactical nukes vs SDI: I hate these resource-heavy situations with huge stakes on low # dice rolls.
The rest of the game, RNG at warfare was mitigated by the collateral damage mechanic and enough production to offset small variances. An early game axe rush or pillage run with a good or bad RNG outcome deciding the game was junk though, I'll stand by that one.
Again, people who played like they believed this were the kind of people who would have 33% more army than someone, then be wiped off the map 15 turns later by the person they attacked.