Two possibilities, imo. Peres is practicing his usual “see, hear, speak no evil” routine (will he ever retire?), or it’s deliberate disinformation. If Israel really did destroy a nuke site (and it’s looking more and more likely all the time), there is no way that relations with Syria will improve any time soon.
Peres is too busy having Dinner with Madonna, the AMASSADOR of JUDAISM!!! What a shallow little man.