The lighter the app distribution, the more often it gets downloaded. So Unity or Unreal are sometimes painful for developers in that context. How much does Defold add to game distribution size?
The runtime stats are very good, but I think he meant the distribution size. So, for example, based on stats provided by AGulev
ios 5.6 Mb ( 1.2.83 == 1.2.84, but +0.3Mb compared with 1.2.80);
android 2.9 Mb (1.2.83 < 1.2.84 0.1Mb, but +0.2Mb compared with 1.2.80);
html5 - 5.3Mb ( 1.2.83 == 1.2.84, and +0.4Mb compared with 1.2.80);
These are the stats which matter in terms of distribution, and the lower the size, the lighter the app's download the better. In part so that the app can be downloaded over the air, but also so that your game downloads and is ready to play relatively quickly as, in many cases, users may download an app, it is large, and then they never even open it because they closed their device and forgot about it and lost the hype.