In general this isn't a big deal, but I also miss Coastline/15 min destination.
Say I send ships to a contractor. takes an hour, but in 30 min I can send to that destination again. So what to do with the ships left in port for that half hour? I used to send them to the 15 min destination. Now, they have to sit in port and do nothing.
I hope you re-think, and give us some destination with a 30 minute run so we can do something with ships rather than letting them sit idle