Presuming that 3rd dose recipients are not "fully vaccinated" until day 7 matches what the Israel dashboard states in https://datadashboard.health.gov.il/COVID-19/guide
Attributing a spike in "cases" to the boosters runs into trouble when challenged with Figure 2 in https://www.medrxiv.org/content/10.1101/2021.08.27.21262679v1 . Admittedly a horrible garbage study, but it finds positive infection efficacy in the days after 3rd dose. Notably it *does not report* severe outcome and death efficacy in the first 11 days.
Additionally, watch out with the Zioni graphic. The blips before August 6 in "per 100k" cases are measured against the early adopters, before the July 31 mass roll-out (which only begins to add people into the "fully vaccinated" pool on August 6). They all correspond to only 1 - 3 new positive cases against a population of ~1,900 early adopters.
If the Bar-On et al. study is correct on infections and yet deaths are increasing immediately after boosters (as would be shown in the messy, hybrid "partially" vaccinated group, not the "fully" vaccinated), that means these deaths are probably from the boosters themselves, and are merely coincidentally being *preceded* by a positive test (despite a decrease in risk of infection). I suppose this requires "fishing for correlations," but sometimes the truth doesn't want to conform to respectable methods of statistical torture. At the risk of spamming a link I already shared, I wrote up my wildly irresponsible booster death theory here https://unglossed.substack.com/p/dashboard-divinations-take-5