I like the analogy/idea, or more precisely find it amusing. But this company doesn't have the necessary liquidity. Plus I am not sure if there can be a real market maker given the transaction volume and volatility of BTC: In the past the daily transaction volume was in the 3 to 8 * 10^9 [billion] US$ range[1], which is massive. And the volatility isn't exactly famously tame either. For comparison, that company self-reports to have moved a mere 92 million in 5 years.
That's like someone with a 500k to 700k portfolio doing 1M worth of transactions in 5 years (should be reasonable?) trying to be market maker for Tesla.
[1] https://www.blockchain.com/charts/estimated-transaction-volu...