Millitary Intelligence hedges its bets

The AMAN military intelligence announced that Arabs seek to commit massive terrorist acts during the upcoming celebrations of Israeli independence. AMAN, mind you, detected “high activity” in the terrorist organizations.
If, however, such a mega-planning really took place, Israeli security services would have already received abundant information about the terrorist act. Israel’s extensive intelligence network among the Arabs intercepts even minor terrorist acts, of which only a handful of Arabs are aware. Large-scale terrorist attack is impossible as it is simple too vulnerable to being detected.
The bulk of intelligence work in the Arab-occupied Judea, Samaria, and Gaza is done by Shin-Bet security service rather than AMAN. By making the announcement, the AMAN degrades to seeking PR points: if no terrorist act happens, it would be implied that AMAN intercepted it; if a terrorist act occurs, AMAN had warned of it.