About writing short: Does additional information make lengthy sentences an exception? Extra words that reveal in detail exactly how the protagonist feels, or the back story that stirred up those emotions?
You mean info-dumping and tactless – meaning passive – exploration of characters? No. Especially not in the final drafts of a manuscript. Disperse and subtract. Add value to other scenes by revealing information in bits throughout the book. It’s called building up the tension – leaving crumbs for readers to lead them to the witch’s house, where you either let the cookie crumbs reveal how Hansel and Gretel escapes or you tweak it enough that they may seem like they’ll escape, but another flavour of crumbs explains how the witch succeeds in eating them.