Very interesting interview.

TLDR:

• Hezbollah isn't meaningfully constrained by either Lebanese public opinion (this is more firmly behind them than ever) nor the potential for economic damage (the economy is already in such dire straits that it's just going from Horrible Situation A to Horrible Situation B). The "official" Lebanese leadership and military also appears pretty okay with Hezbollah, at least compared to during the 2000s when there were important Lebanese people directly saying that Israel should keep bombing southern Lebanon.
• Hezbollah and the rest of the Resistance Axis does not seek to impose itself as the spearhead of anti-Israeli military actions; it always asks what the Palestinian militants want and need for them to do. The Palestinian cause has been unifying for the Middle East and other Muslim countries for many decades now and has special significance that Westerners may not understand when they merely say "Why ain't Hezbollah starting the war up, then?" That being said, Hezbollah has been maintaining a moderate intensity war with Israel since October 7th that it is not deterred from escalating into high-intensity war if need be - but they do not actively seek it.
• Hezbollah is unwilling to tolerate military actions or assassinations deep inside Lebanese territory, regardless of whether the officials assassinated are Hamas or Hezbollah or anybody else. It was forced to respond in order to reestablish deterrence, and effectively did so with the attack on the Meron base, as well as a sudden uptick in the number of Israelis wounded on the northern front.
• Hezbollah's stated casualty numbers are probably about right, because it's very hard to hide deaths in Islamic culture, as large funerals are held for the deceased. This is obviously different to Western cultures, where small, quiet funerals can be held without seeming at all odd, and thus deaths kept secret.
• Israel knows that a war with Lebanon will be a disaster - there is a reason why it has committed unbelievable atrocities in Gaza for months now, with zero regard for human rights or decency, but has not done the same in Beirut or even really southern Lebanon. It's not because the Israelis think that Lebanese people are more their equal, but because they deeply fear the repercussions. Israel may see its only potential winning move as getting the US involved alongside them, but this will introduce further problems as a two-front war becomes a multi-front war throughout the entire region, with US military bases in Syria and Iraq as sitting ducks.
• Hezbollah probably finds all the Europeans and others talking to them and trying to warn them against getting involved deeply funny. They're called the Resistance Axis for a reason - if they aren't resisting Israel and the US, then they might as well give up and become farmers or something. It's kind of the whole point of existing as an organization at all.
• The coalition and alliance of state actors (Iran, kinda Syria) and non-state actors (Hezbollah, Hamas, kinda Ansarallah) is deeply fascinating and is incongruent with Western models of alliances. As the article I quoted up there states, it's based on ideology and shared history and grievances, not mere transanctions or private interest or anything like that. While Iran is obviously the most powerful entity in that alliance, claiming that the rest of the Resistance are mere proxies is simply bad analysis.
• We're in uncharted territory, and whether regional war will begin is unknown (this video was published 13 days ago; I would argue that we are now in a regional war by definition with the bombing of Yemen by a non-Israeli actor). Israel is in a uniquely bad position, seemingly unable to create any actual military victories in Gaza or southern Lebanon (creation of false narratives of victory don't count, and neither does mass murder of civilians - these are standard Israeli past-times). Assassinations of officials is also a very inferior facsimile of victory - these people aren't unique, irreplaceable leaders, and they also aren't especially well-protected. This means that Israel is becoming increasingly desperate. Desperate governments and ideologies do very, very stupid things.