Israel does not use GPS but our GAGAN to target its enemies.
This does not fit public domain information about the extent of GAGAN's geographical coverage.
File:SBAS Service Areas.png - Wikipedia
Here is reporting from Washington Post. A very reputed news paper :
The news came via Associated Press. A very very reputed news aggregator.
And its false :
News reporting in general suffered a lot from the Internet. First because it cut down their (paying) audience greatly, giving them less means to do fact checking and other quality control as well as their own investigative journalism; and secondly because the speed of social networks means that they also have less time to do any work.
The old timey way that a journalist would travel to some town where an event happened, and interview the locals. They may hear some fanciful tales but they'd stay long enough to sort through what they've got and do some validation and cross-checking, so the published article would be relatively accurate.
The modern way is that an unpaid intern trawls Twitter for info, copy-paste a few tweets that seem to be talking about subject matter, and then hit the "submit" button, before going back to writing a clickbaity listicle. "Ten things that you probably don't know!" "Seven lifehacks that will change your life!"
Why we are not upgrading our mirages with some Meteor and AESA radar.
If you were to decide to do that right now, the first AESA-and-Meteor-equipped Rafales would still arrive long before the first re-upgraded Mirage would be ready for testing.
You'd better save money to buy more aircraft than send to re-upgrades what few Mirage I/TI you already have. While an aircraft is being upgraded, it's not available to the air force.