I don't like this idea for mainly one reason: it makes the game even more mindless.If players choose to do so, they can just play without the mod.
When I am trying to achieve a certain score, I take pleasure in having to manually check my accuracy and pay attention. Having this mod would allow players to set higher scores without the need to ever manually retry the map. This is fine for the perfect mod. Since it's so difficult to get an SS, the player deserves to get free retries whenever they mess up.
It's also completely possible for the player to set criteria that's not helpful for their next play. What if there's a part of the song near the end you usually ace, but then you accidentally get a 50 on the last note? It doesn't make sense to me that the player should have to restart the whole song. At least with SD and PF mods, you know exactly what you're getting into. It's much harder to predict how well you're going to do the next time you play a song and you would have to constantly adjust this setting for each song you play.
That being said, this mod definitely does have applications. I just think it's a little unfair as the game should require you to maintain an active mind if you wish to achieve these sort of goals.