Yeah. It's Yom Tov. Shuls are open illegally everywhere. People are mingling everywhere. Unless much less frum are testing now due to Yom Tov, but I don't think that's true. I think I saw the positive percentage in Yerushalayim plummeted this week. Much less tests now, but that should have caused it to go up.
I know little about what's going on in Israel, but from the little I've read, here and on a couple of other sites, people seem to be taking it a bit more seriously since YK. Granted, some more than others There's probably also a faction of people who aren't testing. It doesn't come as a shock that numbers are going down.