Your support for the new sink chances was, "as more merchants have more ships, this feels like a necessary advancement."
Well, if you have more ships and more protections, why would a bonus not be given to the other side? Merchants would get: better defense, less ships lost/depending on how many fleets they have, maybe less gold lost. And without this suggestion, what would pirates get? A harder time sinking ships and getting gold? Yep, seems fair, huh?
I'm not going to continue to argue you with as I believe I have made my argument for it clear. Both sides can benefit from all the recent proposals, and it just wouldn't be "fair", although it doesn't necessarily HAVE to be fair-- it would be nice though--, to implement even more benefits to merchant-scum without tossing a pirate a bone!