First, it's a clickbait headline that way overstates what the article actually says.
Second, it is reporting what some groups expect, not some stunning revelation from Washington.
Third, the groups in question are "Palestinian resistance groups". Hardly reliable.
Finally, the source is at best third hand, if not fourth hand.
"Some guy says there was a leak and that some groups believe this"
Delayed ground invasion part of campaign to keep element of surprise in multi-pronged attack, source tells Middle East Eye
www.middleeasteye.net