It will eventually become decentralized. I mean even the crypto exchanges have a middleman right now, there are some decentralized exchanges between people where there is no middleman but that is taking sometime. If it is taking sometime INSIDE the crypto space, it will be a while before we can have other investment options in decentralized sense.

All the above, it is a right step forward to be able to buy stocks and so forth with crypto so you can actually still keep your money in crypto while investing into other stuff. Right now stocks are very low due to the economical crisis but if people start to buy stuff with crypto there than they can win double, both when crypto increases in value and also when the stocks go up as well. Which means they will probably suggest that to others and we can get more hype around it.