I wouldn't trust anything coming from Israel ever. Their government appears to have a mandate for installing backdoors, evidenced by the scrapped Iron Dome project which they wouldn't hand the source code over for.
You are doing a huge huge leap here, Iron Dome was not scrapped because of backdoors nor do we know about any (officially). Then one project doesn't mean that Israel are doing the same in other projects, and finally the mentioned company is private and has nothing to do with the government
I'm not making any leaps, I provided a link that explained it. I have no trust in Israel to begin with due to their uncomfortable control over US politics, this was just further evidence to support that decision.
https://news.ycombinator.com/item?id=22512674