It is actually a common issue across the board (other stylus') with multiple programs. I wish C2 fixed it, but yeah I get you.
I still don't know how you use C2 with no keyboard. I used a Surface Pro with C2, exact same usage, laying down on my belly lol
C2 is super easy with no keyboard, as you get suggestions of objects expressions and anything as you type. If you noticed when you are entering something in a field in the Event Sheet, there's a small transparent window close by, where you can pick objects with expressions, so you don't really have to type anything. And if you do, the screen keyboard is good enough. Everything is just a few clicks away, so that's why I like working with a stylus in C2.
I don't know if they had stylus in mind when they designed C2, but it's genious. Only flaw is the right click thingy.
I am sure it works...I tried it before without keyboard but was very limited and slow. I do a lot of functions when I use C2, so a physical keyboard rocks. I do find myself switching between mouse and stylus a lot at my desk depending on what I am doing. It is nice to switch it up.
C2 came before stylus' were really being used commonly (even now, they are not *that* common). It would be nice if it was Stylus friendly. I know of other products I used that took awhile to catch up. One version of Unity was completely unusable on Surface Pros due to scaling and stylus issues, but it caught up now. Photoshop was pretty hard to use ironically enough too.
Since I always use a keyboard when using a stylus with C2, it does not bug me. But for you it might not be easiest. you could still use the ctrl-right click trick with an on-screen keyboard.