The proposed theory on why they'd get caught on purpose was to gather up intelligence on what a response would be flying through the airspace. It's c

The proposed theory on why they'd get caught on purpose was to gather up intelligence on what a response would be flying through the airspace. It's certainly the most likely explanation. Accordingly, it seems highly possible that the countries targeted by such incursions (a) realize their response time is being tested (b) fuzz/delay their responses by some certain amount of time in order to frustrate such efforts.