In short, there's a war on. Neither side wants a full blown war but Israel doesn't want to let Hezbollah muster a larger assault, so they're doing what they can to cripple Hezbollah and disrupt their operations.
De-escalation is a goal that takes cooperation from both parties (or in this case, from Israel and the various Iranian proxies attacking them). Telling one party to "de-escalate" while the other party continues attacking is just farting in the wind.
Second, the reporting I've seen (incl. "confirmation" from US intelligence sources) is that this was a use-it-or-lose-it situation: that Hezbollah operatives were on the verge of discovering it.
If the conflict stops, the current cabinet will be forced to face their own party, the opposition and the rest of their country.
There's zero interest in de escalation there.
Zero accountability, forever. This is as grim as it gets.