As a tactic it's a genius move
They telegraphed the Kherson assault for weeks. Russia reinforced the Kherson front to the tune of an extra 10-15,000 troops, which they obviously pulled from elsewhere.
Then Ukraine take out all the bridges across the Dnipro river, trapping all those troops in that area with now, extremely hard logistics and start the telegraphed assault.
Meanwhile at the absolute opposite end of the front all the way over in Kharkiv - the weakened front gets hit hard too.
So you have large numbers of Russians trapped in Kherson and if they want to retreat, they'll have to do it on foot and leave masses of equipment and also losing ground at the other end of the front where Russia moved all it's troops from
Operation Double Penetration