Recall is a specific legal notification that's required for non-compliance with US laws. Other countries have different processes, different terms, and different laws. Even when they are issued with the same terms for the same problem, they're generally less covered by news media. NHTSA doesn't require that manufacturers issue recall notices for other countries for obvious reasons. Some countries pay attention to US recalls and issue their own, like this recall issued by Germany [0] following the publication of a US recall [1].
There's no NHTSA conspiracy against Tesla. If anything, they're overly lenient on Tesla compared to other manufacturers.
[0] https://ec.europa.eu/safety-gate-alerts/screen/webReport/ale...
[1] https://www.tesla.com/support/recall-brake-fluid-level-senso...