That's getting awfully ahead of things. Showing that it's sometimes possible to detect aircraft like this is a long, long way from demonstrating that it's even

That's getting awfully ahead of things. Showing that it's sometimes possible to detect aircraft like this is a long, long way from demonstrating that it's even theoretically possible to replace all existing air defense and targeting/interception radars with it under all circumstance, much less actually trying to do it.