When the price of Bitcoin was very low and in other words when it was almost worthless, those who didn't care about the Bitcoin wallet lost the seed phrase of the wallet without any recovery, so assume that those of you who lost it will never recover from that wallet. Can't and if it can be recovered then it will instantly become a billionaire/ trillionaire. Moreover, if more bitcoins are added to the total bitcoin supply, it will be declared as a bitcoin scam. They will not receive any compensation for losing BTC.
It's not possible to compensate the ones who have lost their Bitcoins. First of all, it doesn't make any sense to add more Bitcoins to the supply just because some people lost their keys and hence lost their assets, secondly, how the hell would one be able to identify the people who owned those wallets? No one would be able to prove it since they don't have access to the wallets. I could say a certain wallet with a bunch of bitcoins that are lost is mine, no one can say it isn't and I can't prove it as well.
So, things are okay as they are, we don't need more Bitcoins added in the total supply and we don't need to compensate anyone. Those who lost their Bitcoins have lost them for good, and they should start from scratch now if they want to own some Bitcoin again.