> There's nothing inherently better about the edited version.
Easier to read ==> More likely to be read.
No, it's not saying the same thing, especially if the tool is telling you that your statement is ambiguous and should be rephrased.
More formal register doesn’t mean easier to read or understand. To many people the exact opposite is the case.
Easier to read is mostly related with predictability of the text. Any time the brain mispredicts the next word, you'd have to go back and re-read.
Unless you are purposely train on that specific way to expression, it ain't easier to read.