These sizes allow much easier transport, less expensive engines, etc.
This smaller size is easier to handle and for us to ship as well, I concur. I had a 3W 31% G202 that was really excellent to fly (although incredibly expensive IMHO).
What I got with our larger Giles was a whole bunch of people who complain that other people's Giles were unstable, so they didn't want to buy ours.
Everyone who bought a Wild Hare Giles and flew it has raved about what a wonderful plane it is. It may be the best flying plane we make. But as long as most people's perception is that the Giles is a snappy unstable plane then what's the point?
That's why we have not sized the G202 downward. This could change, but right now my impression is that most people don't like the Giles.
Tom Fawcett