While I do think Israel's destruction is the wetdream of both Omar and Tlaib, they've been rather careful to not be so actively supportive of such endeavors so many people don't understand the full context behind Israel's banning of them. Most people aren't aware of their actual terrorist sympathies, or their support for BDS. That's grounds for refusal by Israel's general standards, as it's a movement dedicated to harming Israel in political, cultural, and economic fields. Furthermore, their itinerary makes it clear that they were just coming in for no good reason, refusing to call parts recognized by the US as Israel what it is (instead calling everything "Palestine") and actually planning to meet with verified anti-Semitic groups. The thing is - their terrorist sympathies, their vilification of Israel, their blatant goal of causing trouble - is ignored by the media, so most people don't understand why Israel is really banning them. So even within Israel, people are debating whether or not it's good for Israel to ban them, or even if all of that justifies a ban.