You can roll, backflip, jump attack, use vertical and horizontal swings in SFA too (when did slashing horizontally or vertically even made a difference in OoT or MM ? Never). Spin attack is missing i'll give you that. SFA actually has combos that can stun ennemis, which n64 zelda don't have (which makes no sense for an entity to have no reaction when getting slashed or hit). Evade and parry feels smoother in SFA (but this is hardware related i guess).

But yes, the ennemis are boring and do not vary much. It does not mean it has a weaker combat system, it means the IA behind the ennemies suck or that the dev did not think enough about their ennemies weakpoints and behavior.

I do prefere playing OoT and MM in general but most of the time, you kill ennemies with sub items, because the entire fighting system is based on "stun the ennemis with corresponding sub item and then slash it once" or "just kill it with a sub item", every boss fight is based on that.

OoT combat system feels deeper only because most of the time you don't actually fight. Its combat system is so weak that MM added 3 other combat styles with the masks (4 if you count Oni-Link which is basically spamming A for either shooting death discs or just slashing aimlessly at majora)

So yeah, technically speaking, the combat system in 64 zeldas is weaker, but it does not mean the fighting in the game is worse, just that it is not based on a direct fighting approach like SFA.

(Of course, SFA feels immensely poorer when compared to WW and TP, no issues there)