After almost 6 years and 120,000 miles of testing I can scientifically say - YES much safer.
In my case dual car tires up front 11" vented brake rotors and 59" width it's fast stopping and almost impossible to tip. Plus the ride is so much softer.
Also the non-leaning is a real advantage as you never run short of ground clearance and the down pressure on the tires is always consistent.
Leaning vehicles including leaning trikes all have the same flaw, as you lean the down-force diminishes and lateral force increases. Consequently at some point the lateral over powers the vertical force and the front wheel lets loose with disastrous consequences.
I know for a fact a non-leaning reverse trike will out corner the original motorcycle, in most cases quite substantially.