Yes, you are right. There is only one problem. The Dutch have weak soldiers, the French have cavalry that eats up 3 limits, and Mexico has two limits of soldados. And only Malta and Germany have units for 2-3 limits, but at the same time have a classic eco of 99 wheels. Only Germany can play in wagons, and Malta cannot. That is why it turns out that everyone necessarily plays crossbowmen or cassadors. No one plays musketeers for Malta, because they have not a language for 1 pop musketeers. I think this is a big mistake.
Your only chance to win for Malta is to accept Vittoriosa and reach the vills limit before your opponent. If you don’t do this, you lose. Because your opponent always has either a bigger army or a stronger economy.
They recently lowered the population cost for stationary weapons. In a standard game for Malta, you put 3 weapons. That is, you won 3 crossbowmen from this innovation 
. Making weapons not subject to the population limit is also one of the solutions to this problem.
It won’t be a nerf if Sicily’s supply is buffed.