> this type of redaction eliminates the possibility to change text length, which is a very common leak when especially for various names/official positions

Increasing the size of the redaction box to include enough of the surrounding text to make that very difficult.

You'd need to increase it a lot, lest the surrounding text be inferred from context.

But that's a destructive operation!

I mean, sure, you can make the whole paragraph/page blank, but presumably the goal is to share the report removing only the necessary minimum?