In fact if you could get two reactions, which in BG3 you cannot
Actually, you can. Some equipment will give an extra Reaction. Such as the Legendary Rapier in Act 3.
Rogues already got nerfed massively compared to the D&D3 version by only being able to sneak attack / backstab once per turn. There was no limit in D&D3 on how often you could sneak attack / backstab.
To be fair, they also got a massive buff in that you can sneak attack any target. Imagine how gimped Rogue in BG3 would be in Act 2 when D&D3's "You cannot sneak attack undead" stipulation was applied (Also other enemy types like Constructs in Act 3)...
That said... I miss the 3e Special Abilities/3.5e Rogue Talents that provided Rogue with additional utility (Things like debuffing enemies when sneak attacking). It always felt more Rogue-y to be debilitating enemies making them easier targets for your allies (That you rely upon to keep their attention so you can sneak attack) rather than just spamming out extra damage like a knife wielding maniac with sneak attack damage dice out the wazoo...
Especially since we have an attack spamming class that's there to just push out mad damage already with Fighter and a class that has fewer attacks but hits hard af with Barbarian. Which is why this "Sneak Attack Damage Focused Rogue" design end up underwhelming so often, since they get compared to these 2 classes that just do the same job but better and easier. (Which is one of the main things in why Rogue gets complaints in BG3 it's not that Rogue is super awful and unplayable... It's that Fighter/Barb/Monk can just do SO MUCH MORE)
