Drones are a clear a present danger to the Paris Olympics in May, page-5

You are correct that there are large events happening daily but none other than the Olympics are carried live by multiple media outlets globally.

Villains do villainy to garner attention for their cause. The 2024 Olympics is an opportunity in a country with a history of terrorist attacks and a large number of banlieue housing tens of thousands of disaffected youths. Many of these banlieue are no-go zones for the Police Nationale and Gendarmerie Nationale making them the perfect assembly point for terrorist cells.

AS for non-miitay sales, the sale of anti-drone products to non military entities is illegal in The USofA. A bill to allow sales to state govenments, police and security entities has languished in the US Congress for two years as shown below. Similar legal obstacles exist in all other countries.

Safeguarding the Homeland from the Threats Posed by Unmanned Aircraft Systems Act of 2022

This bill provides statutory authority for the Department of Homeland Security (DHS) and the Department of Justice (DOJ) to authorize their personnel to act to detect, identify, monitor, track, and mitigate a credible threat that an unmanned aircraft system (i.e., drone) poses to the safety or security of certain facilities or assets.

For example, DHS and DOJ may carry out a pilot program to evaluate the potential benefits of state, local, tribal, and territorial law enforcement agencies taking actions to mitigate credible unmanned aircraft system threats.

Additionally, DHS and DOJ must coordinate with the Federal Aviation Administration before carrying out any action authorized by the bill to ensure the action does not adversely impact or interfere with safe airport operations, navigation, air traffic services, or the safe and efficient operation of the national airspace system.