I think there are a few other things to consider that are specific to your situation (as an outsider it's been interesting to watch). In my mind, your course has a few extra things going for it - one it's aspirational and people like to imagine the best version of themselves, two the solution you're selling people has the potential to give them a lot of leverage (building an audience has provided you leverage after all), and three you have credibility in the space by virtue of having already done the thing. Of these, I think the promise of giving your customers leverage is the most important value, and people trust you enough to buy it due to your credibility.
I think these aspects don't apply quite as cleanly to Logology. It has a different kind of problem to solve - the "I need a logo and am willing to spend some money getting something decent but not a lot of money to hire a designer to do it for me" problem. It solves something specific, but doesn't provide potential leverage in the same way (once I have a logo, I have a logo - how many of those will I need in my life?). It also may be a narrow niche that you've more fully exploited. So if you're thinking about how to apply your lessons with Logology I would personally tack on how to add leverage too as they all go hand in hand in my mind.