Low bandwidth is a bigger problem than high latency. If it takes half a second or even a second for your clicks to register it's not a big deal, you learn to work around it. But if the bandwidth is so low that it takes 5-10 seconds just to write the screen it really sucks.
I don’t know if this craft has it, but they’ve been announcing all over that we’ll get 4K over a 260mbps link from the moon, so that shouldn’t be a problem