Huge runtimes to get cross platform.
Watch the videos.
A simple hello world app (one form with one button) ranges from 5 meg to about 8 meg in size.
Now the real question is whether the code is compiled to true native code or simply Pcode embeded in a native runtime.
If it was compiled to true native code, then why a 5 to 8 meg EXE ?
The only reason for such large EXE's is likely a native runtime EXE is used and some kind of resources (the actual code) is embeded.
In essence an interpreted language.