Building a high-quality online learning module is a substantial undertaking that involves a range of tasks, such as writing and organising content, developing activities, sourcing multimedia, structuring pages for accessibility, and aligning it all with learning outcomes. At GAILE, we've been curious about where Gen AI might help in that process, and where it does not. Gen AI can accelerate the production of learning resources, but its outputs still require careful educational judgement. We have previously explored how Gen AI can support lesson planning, learning simulations and question generation, and across these examples, a consistent pattern has emerged. Without expert guidance, AI-generated content can be fluent yet generic. The educator therefore remains central to shaping outputs through pedagogical knowledge, critical review and instructional expertise.