EDIT: Israel is hardly 'ultra-vaxxed'. They are still hovering right around 60% vaccinated. They're being talked about like a pinnacle of vaccination, but they aren't nearly where they need to be, and 60% just doesn't justify The Daily Beast making an article title like this that will understandably scare people. Canada, Belgium, Iceland, Denmark, Chile, and Uruguay all have higher vaccination rates at this point. We should be looking at countries with 70% + vaccination rates, not Israel. Israel started celebrating and re-opening pretty early.
Just to add some positivty, they have a few more interesting factors.
They got people vaxxed faster, and waited less time between the 1st and 2nd shots in Israel. They likely didn't wait long enough between shots #1 and #2. They also gave boosters likely too fast. And when reading the article, most of the people being hospitalized are still over 60 years old, and/or have multiple other co-morbidities.
Fully vaxxed still people are still overwhelmingly not going to the hospital or dying from this thing, even the Delta variant. There are more breakthrough cases than we hoped for, but the vaccine is still preventing serious complications, illnesses, and death. And it's still the best tool we have to fight this thing right now.
There's also this:
Israel's COVID-19 vaccine boosters show signs of taming Delta