Because.
1. Notoriety is a pilot statistic, not a ship one. so it doesn't matter what ship you are in, it's still a factor
2. Notoriety is reset when you are blown up so because of 1. it doesn't matter what ship you are in when you are destroyed
The order the potential work around would be.
kill players until notoriety gets too high
Dock at station and pay off bounties/fine, that enables you to buy a sidewinder
buy sidewinder
Get a friend to scan you. blow you up.
Notoriety gets reset
Go back to killing
It'll need to be tested ofc, but from the stream this could be a potential loop-hole
Again, though, at no point did they say Notoriety would reset on death. There are plenty of other player stats that don't reset on death. You are just making assumptions.