It wasn't the most lean approach to launching a startup. If they did some testing up front, they should have been able to identify the user retention issues early on. It's weird that a team with so much experience didn't properly test the product before investing so much time and money into it.

I doubt that this is the last iteration we see from the Airtime team, but the initial product was definitely telling.

In the end, looking in to a company from the outside, no one really knows wtf they're talking about when they pass judgements.