This sounds a lot like a sales pitch by Ledger, is the next service you are going to sell me involving me sending my seed, online, to Ledger so it can be sent to 3 third parties... because that is what made so many people laugh at them last year. They can add as many layers of cryptographic schemes on this, it so antithetical to what you should do with a seed you want to secure that it ruined their reputation for a lot of people. If you have missed this episode or prefer to forget about it, it doesn't make it less real.

I'll add that even if that didn't make them a joke to you, I am just as concerned by their customer data leak (similar to what I've mentioned above for Trezor) and that alone makes me not want to recommend them, I just didn't mention it as the other point is egregious enough on its own.