And I would mostly agree so long as you're the only one who has access to said data. There will always be "ISPs", of sorts, that your data needs to pass through; that's simply how the internet works.
The nitpick about Cloudflare is that they are starting to act as a gateway to the internet. Maybe you can turn their fronting off if they start giving you trouble, or maybe your registrar also runs behind Cloudflare. Anyway, bit of a philosophical discussion how much power to vest in one company.
The real trouble is that their main offering involves giving them the private keys to your traffic. I don't know if that's also the case with this Tunnel product, but at least for regular websites, then they process your actual data, as with the bank example (a colleague at said bank was not happy).
But if you want to be accessible to the outside world, you need to direct your traffic outside; I don't see a substantial difference between routing your traffic through Cloudflare, Comcast, Equinix, or any other major connectivity provider.