Your last paragraph nails it. Cryptos cannot be used widely in the real business world if they are not stable. Real business profit margins are often small and so buying manufacturing materials or selling end goods wit a currency system that may move up or down by anything from 10-70% in a day is roulette - totally impractical.
The crypto space is like the Californian Gold Rush on hyper steroids. At the moment it’s a speculators platform not a business platform.
Across the crypto board, transaction speed, particularly settlement time, is awful at the moment. Waiting well over a week for money to arrive in your account is also worrying and not acceptable from crypto exchanges. Business needs stability. Cryptos are insane right now and so it’s difficult to see how they can successfully connect. The slow process of evolution will grind out a workable union.