I agree with that, although the ADI tells us that sucralose taken within that amount is free of genotoxic effects, it doesn't tell us what it does in our body. And we can't really rely solely on mice studies either. Saccharin, for example, showed bladder tumor-inducing effects, which seem to be unique to male rats, as the same effect was not observed in humans, monkeys, or hamsters.
And yes, the goal should be to reduce sweet cravings instead of sugar intake alone. This is an insightful article, thanks for sharing :D