[sitepodmatt]

I believe Kiwi underwrites this in that they will rebook you another flight and pay costs incurred hence they pad with long layovers even if a shorter connection is available to reduce the risk exposure. They will probably get better at this over time, it seems at the moment they are quite risk adverse and it's all very manual - i.e. you have to call them to tell them that your flight was late and you've missed second connection.