This is the key. It's all about hard power dynamics.
If the enemy can bomb and kill you indiscriminately, rhetoric without actions is all that's left to try and salvage. Iran knows this, so does china and Russia. They are still bidding their time, and smartly so.
No matter how some on the forum wanted Iran to start a war, or for china to shart shooting when Pelosi was traveling to Taiwan, or want Russia to shoot down all NATO assets around eastern Europe, the same hard power dynamics are still at play.
That being said, if the enemy backs one into a corner eg. keep territorial integrity and security such as Korean war, Ukraine joining NATO, than you gotta fight as best as you can. Otherwise, you got to evade. There's no shame in doing that as long as you have a plan to come back stronger.
Iran is somewhat compromised. They just had a new president, with the previous one dying under suspicious circumstances.
Their population is divided. They need to hunker down, clean house. Starting a war is not what they need or can do. Many here may disagree with me but Hezbollah is not absolutely essential to Iranian territorial security. Hazbollahs success offers the Iranian ruling class mainly bragging rights and some political strength but it's mostly internal economy that counts towards population support.
Thats why I still feel Putin had the right idea. He had to fight to keep Ukraine form joining NATO and becoming an existential security threat to Russia. When he couldn't get a quick political agreement, he started the slow grind, but focused on keeping the economy afloat, maintaining support and logistics. This is, I feel, a much more superior strategy than trying to overwhelmingly destroy and conquer Ukraine with tons of men and recruits, then spending inordinate amount of money to keep and suppress local uprising and guerrilla warfare, like what the US did in Afghanistan and Vietnam. Russia would probably be bankrupt and there would be a lot more social unrest, Putin probably would have lost lots of support or even have lost the election.
I suspect that was what the west had hoped Putin would do because that would be a sure way for him to lose support
All warfare is based on deception. If your enemy is superior, evade him; if slightly inferior, yiu should avoid the enemy; if quite unequal in every way, you should flee from him.”
— Sun Tzu