At this moment, I find the credibility of this news questionable. It appears to be a mix of speculation and wishful thinking. However, if the report were accurate and Saudi Arabia did purchase 100 KAANs, it would certainly establish them as a significant partner in the project. That said, it doesn't guarantee that they will gain extensive technology transfer and deep expertise from TAI.
Saudi Arabia could play a pivotal role in persuading other Arab countries to make purchases from us. I have no objections to transforming Riyadh into a hub for regional production, final assembly, and maintenance operations. Saudi Arabia is not our enemy and in many ways less harmful to our interests than the regime in Iran.
Having said that, Saudi Arabia may leverage us as a negotiating tool in their discussions with the countries involved in the Global Combat Air Programme. It's best to remain cool and reserved.