The reason that amendment happened was the general consensus that the Senate had been in the pocket of the trusts for the preceding quarter-century. It's not a coincidence that the Clayton Antitrust Act was passed the following year. In general, structural reform requires broad consensus that there's a problem, due to the supermajority provisions most states other than the UK require. (The UK uses long-standing norms perceived as red lines not to be crossed.)
In the context of Israel, it would take a lot more for that sort of consensus to form in the European Parliament. There would have to be some real consequences above and beyond the sense of not feeling represented. She probably will be told she goes down if she pulls another stunt like this, and not to expect a return to the seat. She likely will feel she spent her one get-out-of-jail free card in the right spot, and life will go on.