The amount of coins lost is completely meaningless. I cannot make this any clearer.
The amount of coins lost per year matters, that's a net gain for every other holder.
Nobody was talking about some noob question of "oh no, we will run out of bitcoins if people lose them because we only have eight 0's".
Yes he was. He was advocating a specific altcoin is useful because it has an infinite supply and Bitcoins coins get lost every year. That cannot be interpreted any other way.
As with your actual proposal: the block reward is a subsidy. If the subsidy is needed forever our little experiment has failed.