CI3 Download Size

Hmmm - the CI3 zip download is 2.0MB, and the .gz version is 1.4MB. When extracted, I show the total size, with the framework and user guide, as 8.1MB.

The CI2.2 zip download is 2.2MB, and extracts to 4.4MB.

The extracted CI3 user guide takes 6.1MB, which is much larger than the CI2.2 user guide at 2.7MB.
The extracted CI3 framework is 1.8MB, compared to the CI2.2 one, which is 1.3MB.

So, you are correct that 3.0 takes more space than 2.2 when expanded, but you are incorrect when you say that its download is larger