There are a few anomalies. The claim is the Dart completes the journey in under four minutes but most passengers will do it in 2 minutes 38 seconds. The EMA train takes on average 22 minutes in one direction and 23 minutes in the other. Allowing 5 minutes for a transfer with a Dart immediately leaving means the journey could be completed in just under 30 minutes. In reality the transfer will take longer than 32 minutes.
There is a claim that the journey from London can be done for as little as £10 but actually it is from £7.60 with no flexibility.