I agree! If Ukraine gets close enough to the Sea of Azov to cut the land bridge or is able to isolate Crimea some other way then it is game over for Russia (and probably for Putin). The fact that Ukraine has not won yet does not mean the counter-offensive is a failure.
It may seem slow to some/many in the West because Ukraine lacks the air-power and enough long range strike capabilities to perform the rapid attrition warfare that people are used to seeing when the US invades.
The US is training Ukrainian pilots. Fighter jets and more tanks from the West are in the pipeline. If the extremely high standard of measuring success by cutting off Crimea were already achieved then there would be little urgent need for all this equipment and training. The defense departments supplying that equipment were not expecting the war to be almost over this summer.
Ukraine is making slow but steady progress along long stretches of the front, including in Kherson which may soon threaten some of the few remaining land routes to Crimea. They have repeated demonstrated an ability to damage the Kerch bridge and to sink and damage ships in the Black Sea.
By contrast, the Russian winter offensive was mostly a failure. Wagner troops were able to capture the strategically insignificant town of Bakhmut at a very high cost. That high costs includes a Wagner mutiny and internal strife in Russia that may lead to Putin's undoing. Ukraine played this brilliantly! Likewise, the Russian counter-counter-offensives this summer have mostly been failures with extremely modest gains that are usually quickly taken back by Ukraine.
IMO, it's about a year too early to judge success or failure. I think Ukraine needs to show significant progress (like getting close to the Sea of Azov) by
next summer. Weapons are already in the pipeline for autumn, winter, and spring including Abrams tanks and F-16 fighter jets. It's a darn shame Ukraine did not have these weapons for their offensive this summer. It is what it is.
But by far the most important reason Ukraine needs to make progress
next summer is the US election.
The outcome of the election could well depend on the result in Ukraine and further US aid to Ukraine could hang on the result of the election.
If I put on my conspiracy theory hat then I would not be at all surprised if the US is slow walking aid to Ukraine this summer in order to ensure the big breakout and breakthrough happen next summer in the heart of election season. A Ukrainian victory this summer will be hardly a blip on the radar during the election campaigns next year (
what have you done for me lately?) But major victories by Ukraine next summer will be <blink>
HUGE. </blink>
If the Ukrainian counter-offensive peters out next summer without major gains and if a foe to Ukraine and friend to Putin is put in the White House then I will 100% agree with
@Fred42 that the counter-offensive was a bust with huge implications across the globe. But I find it extremely hard to believe that the current US administration is blind to all of this so I expect to see a major push by the US and their current allies to help Ukraine leading up to next summer.