I think you have a good balance

I think you have a good balance.An important standard to consider: can someone access the content using only free software? By offering video in Ogg Theora, it makes it possible to access it without proprietary software like Flash (I tried going without for a few months last year).Whether or not you also make it available in a proprietary format, like Flash, that you know the vast majority of your audience will be using, is an appropriate compromise to make the material accessible. It's up for debate at what point that becomes "playing into the hands" of proprietary technology. In terms of video on the web though, that point is certainly not now. Maybe in a few years, the landscape will be different.But the standard of free software access is key, I think. It means there are no proprietary dependencies.I think it's useful to look at free software for Windows. Even the FSF develops free software for Windows, as they view it an appropriate compromise in terms spreading free software and reaching those on the most popular operating system. But proprietary software on GNU/Linux? That's taking a step backwards.Anyways, for what it's worth, I think you've been doing fairly well here.