You might wanna take those issues up to the people actually working on these things [0], I only shared what I remembered about startups working on the problem.
They are aware of the limitations, read the carefully worded marketing on that page:
"When on target, they can prompt a drone to land safely on the spot or return to its point of takeoff, while cutting the video livestream back to the operator immediately."
Just because someone is making a product doesn't mean the product isn't stupid. I remember there was a mob making another anti-drone 'gun' which jammed GPS. That didn't end well for them.
Unless the target drone is actively being used in a hostile manner (as opposed to idiots flying where they shouldn't be), then removing the operator's control of the drone without establishing another means of control makes the situation more dangerous.
"When on target, they can prompt a drone to land safely on the spot or return to its point of takeoff, while cutting the video livestream back to the operator immediately."
Just because someone is making a product doesn't mean the product isn't stupid. I remember there was a mob making another anti-drone 'gun' which jammed GPS. That didn't end well for them.
Unless the target drone is actively being used in a hostile manner (as opposed to idiots flying where they shouldn't be), then removing the operator's control of the drone without establishing another means of control makes the situation more dangerous.