I think the Wildberries strikes were a unilateral escalation on the part of Ukraine and the current escalation cycle has ensued from that.
Cutting off the enemy supply line is a classic and obvious military strategy. Ukraine didn't choose to be attacked, nor did they choose for Wildberries to become part of the supply line. They are playing the cards they were dealt, and I would say doing so with remarkable restraint.
What's supposed to be the argument against it, inconvenience for American shoppers during a war of aggression?