One of the critical things that Midjourney got right, as I learned from talking to David, was targeting prosumer and the "enthusiastic non-professional" users first over "pro" users. Pros may appear more lucrative in the beginning for a creative product, but they have ingrained workflows that they don't want to change. This early in the lifecycle of the technology and product, when rapid iteration is critical, Midjourney benefits enormously from the flexibility afforded by a less "pro" user base with more flexible workflows that can evolve as quickly as they can ship and experiment.

I imagine similar tailwinds benefit Replit, who seem to ship interesting future-facing ideas about how software is built faster than almost any other organization of any size.