While I also would like to see bolder action in support of Ukraine, I don't think they would have been sufficient to enable that offensive to succeed. Unless a whole lot were given. Personally I don't think that attack into heavily fortified, deep defenses backed by available post-mobilization Russian reserves was ever worth it, though I understand why they wanted to try.
Ultimately though, I don't think the war will be ended by gaining/losing ground anyway, it'll be ended by political and/or economic exhaustion of one of the sides. Towards this end, the planes will help.