To be completely fair: many projects at many companies turn out to be failures. Rust could've been bad and Firefox OS could have ended up ruling the world, and

To be completely fair: many projects at many companies turn out to be failures. Rust could've been bad and Firefox OS could have ended up ruling the world, and suddenly your comment would look very different. There's just a fundamental risk in projects, and viability often only becomes later in hindsight. (Most other companies failures just happen to be a lot less visible since they're not developing in the open.)