Define scale... People usually use that word talking about something completely different with bitcoin.
Anyway, I think the point trying to be made here is that BTC doesn't generate a stable positive cash flow as for example QQQ or S&P500 would do long term.
Well, my take would be that with BTC a positive cash flow isn't important. BTC is cash money, but completely disconnected from any systemic risks as modern finance defines them. There's absolutely no possibility of bank collapse, hyperinflation, government or state failure etc. People that hold BTC already must have their means to survive otherwise with their everyday transactions.
Frankly, BTC is a better instrument of facilitating every day transactions only in places where inflation is crazy high and government can't easily support its citizens. In such occasions there are some edge cases that could see more utility from BTC than their local cash. But most people in let's say Venezuela where there is a lot of inflation don't even have regular access to good computers or Internet.
Long term investment vehicles, tend to prefer lower average volatility coupled with balance locking virtually identical to crypto staking. Or limited options for withdrawal, with some time based penalties for early fund access.
That sounds much like term deposits and government bonds. Well, these options aren't real investments. They bear no risk. They merely let you beat part of the projected annual inflation but not much more.
There may be a fundamental conflict between being a high volume day traded asset which can be utilized to purchase daily goods and services. And being an optimized HODL asset. Which in traditional finance is geared towards lower volatility, less volume and reduced access. A conflict which is seldom acknowledged.
This is a topic that has been widely discussed. There's an inverse relation between bitcoin's utility as a payment tool and its price for example. Because when prices skyrocket, so do the fees. So when bitcoin goes up in price, it's not so useful for payments anymore because you have strong counter incentives to use it for everyday payments due to fees consisting of an evergrowing part of your transactions as prices rise.