Catemaran hulls are specifically designed as such, you can't use normal hulls.
You do gain the extra room for solar, but equally you also make the boat wider, making it less flacrical in confined waterways like canals and rivers.
In high latitudes having a vertical solar sail might actually work quite well to well as both a solar array and a wind sail. But that will require significant engineering design time to get right.
I would also state that they would do it based on rational motives mainly (they want to exploit their neigbours). The main problem is the irrational based support has an outsized influence in the conflict.
Thats some Crimea and Dombas level shit.
It should be met with humor and satire.