For those not in the loop: it's been impossible to make transactions on a number of platforms including Robinhood due to the overwhelmingly high load causing those platforms to fail. A lot of people were basically locked out from trading.
I think the government are damned whatever they do. A massive fiscal stimulus admits there's a massive problem (and the government has been trying to project a quiet confidence that this is something under control), so markets will tank. A small response could be seen as inadequate.
There are still costs to your transactions, not least of which is the information gulf between you and an institutional investor with a Bloomberg terminal.