In general I like going up against the Burning Blade, but it really sucks as a solo specifically because of the skeletons. Obviously I know why they're there and I don't think they should be removed, but the biggest issue I find when fighting burning blades is the fact that once you board, every single skeleton will stop what it's doing and crowd around you which just makes it impossible to move.
I think that a simple change that wouldn't be a huge nerf to the world event but would make it just a little bit more manageable for a solo to fight it would be to limit skeletons to where they can go. I think that like 3/8ths of the skeletons should be stuck above deck, 1/2 of them should be stuck below deck, and then 1/8th of them are able to free roam between the decks.
Obviously the numbers can change, maybe just half above and half below and none that can travel around, but I feel like it would both just make it so fighting against the burning blade is more fun because you're not just going against a huge mass of skeletons that not only can stop you from doing anything but also body block any shots to the players, but it would also mean that when the burning blade is boarded, there will still be some skeletons cannoning and repairing so it doesn't seem like the ship just completely stops all functions.