Nope, thr Bibi of today is not the Bibi of yesterday.
Old Bibi would not have allowed the Israeli image to be tainted in public by his actions in Gaza and the region, he knew the importance of public perception and plausible deniability.
This new Bibi is fighting for his own personal survival, everyone including the hostages be damned.
If he signs a peace deal, he loses support/power. All these public displays are to project "power". Also if the response includes rockets in Tel Aviv and Haifa, he can say "look they're attacking us, first comes Israel then you (America)". Just like he did in congress last week. Which also speaks to Bidens power, you saw congress clapping like seals last week, he has none. Israel is a strategic asset and there are too many people in his administration who dream of war with Iran.
They'll be no more negotiations for a while, which is terrible for the people of Gaza and the hostages.