Well if you have download more data per second then you can deal with more spottiness. Because the goal is to download something. A 1Gb/s connection for half a second is better than a 100mb/s connection for 5 seconds
But my point is that there's the consideration that it takes half a second to download 500Mb (roughly a 720p video). So if you have 0.5s uninterrupted that's pretty convenient. I'm also pretty positive that coverage will increase from current conditions (I don't see a reason why it wouldn't). So the speed helps with the spottines. Basically what I'm saying is you don't need as long of a connection to download the same amount. If your spottiness is the same then you get more on 5G. Alternatively since it is 10x the speed, that would be equivalent to 10x spottines (which were not considering a fallback to 4/3G).