If I not mistaken the coolant splash issue has been fixed with Coolant Bypass Pipe from plastic to metal since 2020 IPM, but we never know other things that might have caused the issue.

Seen some people posted that their car reached more than 100k KM but known issue haven't occurred yet.

You may continue the service of your upcoming car at Mazda authorized SC to enjoy goodwill warranty for the engine issue until 30st August 2030.