The reason why proprietary software ever had a moat simply comes down to: software startups could dump investment capital onto the development process and achieve results much faster, with better user interfaces, allowing them to achieve path dependence in their customer base. Thus we had a few big application verticals that were ultimately won by MS Office, Adobe Photoshop, etc.

If the result here is as marginal as it seems - a few months of advantage in output quality and a slightly more sleek UI - the capital-intensive play doesn't work. The featuresets that industrial users want the most depend on having more control over the stack, not on UI or output quality. The open source models are stepping up to this goal of "cheap and custom". Casual users can play with the open models without much difficulty either, provided they take a few hours to work through an installation tutorial - UI isn't a major advantage when the whole point is that it's a magic black box.