The link works for me.

> The Pentagon has also struggled to find software that can successfully control large numbers of drones, made by different companies, working in coordination to find and potentially strike a target—a key to making the Replicator vision work.

So the software can't work with arbitrary drones. The article also talks about the high cost of some of the drones.

> Of the dozen or so autonomous systems acquired for Replicator, three were unfinished or existed only as a concept at the time they were selected, according to people with knowledge of the matter. Among Replicator’s shortcomings, officials said, is that the Defense Innovation Unit was directed to buy drones that had older technology, and it didn’t rigorously test platforms and software before acquiring them, other people familiar with the matter said.

So the military bought promises and basically funded some research. That's fine imo, they do that all the time, but their expectations did not align with results in these cases. And they didn't set good requirements for the platforms.

I expect the hopes for AI-driven drones with the ability to target individual humans by identity is probably not quite here yet. You have to get around jamming, fit any tech on a small platform, and it has to be cheap and disposable. And you don't actually want "AI", because you don't want it to mistakenly kill civilians, you want highly accurate computer vision.

In Russia and Ukraine, they are manually piloting drones that are attached by fiberoptic cable. It's cheap and effective, but requires a human pilot. At least for now, I would guess this is a much more effective (in results and cost) way to go. A human can pilot dozens of disposable drones in a day that drop their payload and are then discarded.