Yes I read this too. A little unclear what the various interest groups' concerns are, beyond wanting to be considered as a priority and for things to remain as they are now. Neither of these things is going to happen :
1. Believe it or not, there are far bigger issues over Brexit than the rights of those living abroad - the country is torn in two, the prime minister is weak and wobbly and has no credibility and there is no plausible alternative on the other side or within her own party, a hardline minority party in Northern Ireland has extracted £1billion as a down payment for its agreement to support a minority government that is woefully underprepared for complex negotiations that the other side has been planning for carefully for months etc etc. The rights of those Brits living in Crete and elsewhere in Europe are a speck of dust by comparison - it's not a priority.
2. Even if the whole referendum wasn't won on the immigration issue, the difference between Leave and Remain was small enough that the concerns over current levels of access to the UK would have made the difference in the way people voted, and the prime minister made her name taking a tough stance on immigration as Home Secretary. Her backbenchers, on whom she relies, include those who want an end to freedom of movement and would see acceptance of the EU position as a failure.
In short, the U.K. is in a big hole and it is still digging. These interest groups may be the only voice Brits living abroad think they have, but they will go down in history as a footnote demonstrating that where Brexit is concerned expats are completely impotent.