Other than G-TIGK which had arguably sub standard (as in an inappropriate certification standard) tail rotor blades - and 332L tail rotor blades were subsequently improved - I don’t think there have been any loss of life or loss of aircraft incidents from TL. However each strike is VERY EXPENSIVE as it generally requires replacement of blades, head, main rotor gearbox etc. And can be pretty alarming when you see the damage.
I have always thought the forecasting algorithms were pretty blunt but then again I can’t design a better one! My own TL strike was from stratus cloud, absolutely no turbulence at all. Then zap. A pretty minor one but resulted in a burnt rotor blade.
With regard to the current publicity there is “defence” that de-icing wouldn’t help. But surely if you can climb above -2C then you are clear of the TL zone. Maybe it depends on the specifics of a particular aircraft’s de-icing system?