I prefer a faster pace as well. I’m impressed when larger companies can move as quickly as smaller ones, but this is not the norm. As products mature and large organizations become dependent, there are significant risks associated with moving so quickly.
As to a public roadmap, this is important in less mature companies that are challenging existing competitors. They have little to lose by telegraphing their plans and much to gain.
Coda has crossed the decade mark, so if you’re on it and there are missing features that you cannot live without, you probably should be on a different product. And what would that competitor be? Name one that’s better. I’m always looking to be sure it doesn’t lead to this.