Pretty accurate. I think Trump didn't expect things to get to this point. He really thought if he pulled out of the deal, destroyed Iran's economy, that it's leaders would be crawling to beg for talks. He didn't expect for Iran to hold on and refuse to talk to him, meanwhile even provoking him by shooting down a drone. Trump is in a tough spot, that's why he's walking back the tough talk and giving Iran many outs.
The reality is that the US can destroy Iran. But it will not be without cost. The US will also suffer a great deal of damage. This isn't like attacking rag tag rebel fighters or even Saddam's Iraq. This is fighting an organized state with significant firepower.
If Trump gets us into a war with Iran, it will be the end of him. It will be the end of the American empire, and he knows it. That is why he's eating some humble pie and trying to find a way out right now. However, do not doubt that many in the US government and thirsting for this war. They will do everything they can to provoke some kind of war. Do not doubt that Netanyahu wants the US to fight a war. He knows time is running out. There may come a day when the US no longer sympathizes with Iran, take how many Democrats are anti-Israel for example. Time is ticking. We have gotten to this point of hostility because of Trump's stupidity, it just requires the perfect tipping point and there are many bad actors in the US, Israel and KSA that are determined to get us into a war.