according to LNT, if every human ate a banana a week, bananas would kill 1600 people a year. In the same scenario, SNT kills one person every 2.5 million years.

Now, class, let's get back to basics.
Repeat after me:

It's not dose. It's dose rate profile.

Good.
Repeat after me:

LNT does not say eating a banana is safe or unsafe.
LNT says eating a banana has a 4 in a billion chance of killing you.

Repeat after me:

SNT does not say eating a banana is safe or unsafe.
SNT says eating a banana has a 1 in a billion-billion chance of killing you.

Whether those risks are safe or unsafe is up to you.
Class dismissed.