[Catquiet]

I think people would complain if the next Dominions Patch added a random luck event that could redirect the gems and items you send to an alternate destination.

It was not a strategic mistake because sending gems to Soyweiser was not part of his strategy. Misdirected messages can't even be counted as carelessness like not scripting your troops would be. Absolutely everyone makes mistakes, a careful person double checks, but that isn't possible with messages.

I would consider it a meta-game User-Interface issue, therefore sending the gems back was the correct thing to do.