Actually they did just that - they suspended trading at the moment of the announcement, that's an effective delisting.
I've lobbied on behalf a couple of coins that were queued to be delisted and got it reversed after fixing the issues that started the delisting process.
The delisting criteria is clearly stated on their website and it is no mystery why coins get delisted.
I've had it a number of times where the coin dev was aware of the issue for a long time prior to delisting process starting but did nothing qbout it but messaged me to help them within hours of the markets being paused.
When the issues were fixed the delisting process was stopped and the paused market resumed trading.