You are missing up some words, it's called "seed phrase" and not security phrase, and it's called hardware wallet and not hard wallet. I hope you understand.
Once theee are loss, the bitcoin in that wallet is as good as gone, it will be there but you can't have access to it again because you can't spend them.
Knowing that BTC has a limit, and we're getting there soon, isn't it possible to have some compensation for those lost BTC?
When you said compensate? Where do you get the bitcoins to compensate them from? Charity? Exchange or you want to give them your bitcoin?
First, you need to know that nobody can know if private keys or seed phrase to a wallet address has been loss because the bitcoin will remain unspent in that wallet address forever until someone who have the private keys, so you and I can't tell and the Bitcoin community cannot tell if a wallet is unaccessible.
You should have seen some wallet of 10 years ago been move, how do you even tell if some of those wallets are inaccessible by the owners.
Would it be positive for the currency or could bring some caos?
Even Shitcoins with foundations that knows about their investors losses and wallets hacks don't compensate their investors, it's bitcoin that depend on miners reward before the circulating supply can be increase that you want them to compensate? Bitcoin is not some banks that can help you recover money or compensate you when you make mistakes, always remember that not your keys not your coins.