Clearly the swap deadline was not communicated well. A single answer to an AMA question hidden among hundreds of other question/answers, plus a single random tweet, is not an appropriate announcement for a swap. Swap is a major even; I have seen other coin managers announcing swap many months (sometimes more than a year) before the deadline, reminding about the swap deadline every month (every week, then every day close to the deadline), putting a countdown timer on the main page on the website, for the visitor to see it first thing when he enters the website.

All this is done because coin managers realize the cryptocurrency is supposed to be a form of money, and it is illegal to deprive people of their holdings, without provably giving them a chance to  swap. Basically it is similar to a government accepting old banknotes for years (decades) after a new banknotes are issued.
This behaviour from the devs (throwing a dart to find a date?, deciding just because one single user said something?, who told the swap end was a community request and there was consensus in community about that?), just shows devs are either not very serious about their project, or have little understanding of legal issues, or have little interest in belongings of community members.

Bottomline, while I don't really support the behavior of this complaining user (as you can see from my older replied to his previous series of complaints), he brings up a valid point.

P.S. Just to avoid unnecessary speculation - I personally have swapped all my Coval coins long-long time ago, I have no financial interest in supporting 'late swapper's. I just think this issue could have been handled much better (maybe still can).