I am not a fan of Jastreboff, the mainstream narrative is that TRT can help (even though I think this is changing).
As for PureTinnitus (Ben Thompson), he runs a popular YouTube site with a lot of subscribers. Neosensory Buzz is partnering with him to get their brand out there. They've given the devices to some other influencers on YouTube. And rightfully so, this device is helping the deaf a lot with situational awareness.
This device has some science behind it, it's bimodal stimulation and some users on Tinnitus Talk have reported benefiting from it. If I could turn my tinnitus from a piercing ring into a fizzling hiss I would do it in a heart beat. So...
Why the negativity? I understand everyone wants a pure fix/cure but I will take anything that improves my QoL even if it's a marginal improvement. This device has some great science behind it and it's creator is an adjunct professor at Stanford. Go watch his TED Talk. Try the device, if it doesn't work for you, return it. That simple. If it does, keep it. Nobody is forcing anyone to buy it. I wish had the opportunity to try it. You Europeans and Americans are lucky to be able to take advantage of these cutting edge treatments. The rest of the world has to suffer it out.