This was also true for Five Eyes/EU sharing too, even though with this year's legislation some EU countries have offered Israel a direct access to INT feeds.
[1] https://www.theguardian.com/world/interactive/2013/sep/11/ns...
But this agreement concerns raw, non minimized, SIGINT (eg. direct tapping into feeds/traffic) mainly from US -> Israel.
The integration in the cyber domain is a different tier compared to the default the US has with other eyes.