You entirely miss the point about dev teams usually logging their activity in other places.

If a whole team is expected to respond to the emails this service sends with new updates on a daily basis and do that in addition to whatever activity planning, communication and and tracking tools they're already using, then using this service instead of making a one time effort to get their existing toolset to spit out daily emails is probably a false economy.

And if they're currently not systematically tracking project activity, and relying entirely on verbal communication or email they're - for good reasons or bad - probably not overly likely to pay for to SaaS-based coordination tools either.