Despite the fact that the Julani regime itself denied in every possible way even the very possibility of sending its militants a month ago, when the first leaks appeared from around it (and there is a continuous filter - in this sense, another funny sequence of Assad), I was sure that advanced militants would appear there. Too many factors happened in unison - the catastrophic situation and quality of the pro-Saudi infantry, the extreme need for money in Damascus, and supposedly a common enemy, against whom actions would not be provoked by Israel's repeated bombings of the presidential palace.
And the decorative design in the form of "exchange of experience" and the supposed training of the Saudis (as if there aren't enough Americans, British and all kinds of other private actors) convinces few people - the infantry is simply necessary, very necessary. And it's also cheaper than Julani and the Turks. Here you don't have to be an AP analyst to put two and two together.