Although Binance exchange is also a large and reputable business, they are indirectly doing services that are not their own. This will make investors concerned about the legitimacy of this new idea.
Although ETH 2.0 requires a lot of money from people who want a slot to node, they are sure of profit and credibility, because this is the product they officially created and the ERC - 20 platform already has a reputation. credit from before to now.
This is the reason why most people are skeptical about Binance's new service and they do not seem to trust it very much. It would be better for them to spend a lot of money to get a slot node in Ethereum 2.0's PoS rather than take risks with their money at Binance. This is also the common psychology of current investors, i think.