I think the point is that the ship is itself an expensive and vulnerable method of delivering drones to a target (because warfare has become all about delivering more drones to the target than the other guy can cope with).
If you deployed 100 patrol boats, each with 100 drones and no missiles, that is a cheaper, more efficient, more resilient solution that one ship with 1000 drones and a bunch of missiles.
Define drones. Define missiles. How big are these drones? Are they group 1? Group 3[0]? Can this ship with missiles use its group 4 drones to find and fix these patrol boats so it can toss missiles at the opposing patrol boats? Can the patrol boats do anything about the missiles incoming at M3? Can I use some group 4 drones to drop a bunch of group 1 drones in the vicinity of those patrol boats, where they have no response because they don’t have medium anti-air capability?
None of those. As we're seeing in Ukraine, the new drone wars are all about tiny commercial/consumer drones being repurposed as weapons in huge numbers [0].
Obviously, everyone scoffed at this when reports first came out. How can a $250 consumer drone take out a multi-million-dollar modern tank?
Yet here we are. Neither side are fielding tanks any more because they're vulnerable to drones, and therefore obsolete [1] (caveat: we haven't seen the end of this cycle of development and response, so it's possible that tanks work out how to defend against drones and continue being relevant. I suspect it's more likely that tanks go the way of cavalry. Machine guns were the answer to cavalry. Tanks are an answer to machine guns. Drones are the answer to tanks. The answer to drones won't be better tanks).
The Ukraine war is not a naval war, so we're not seeing the same rapid development of new naval military doctrine. But if a naval war kicked off, it's reasonable to expect the same rapid adoption of new technology would play out, with the same results. Large, expensive, weapon systems (in Ukraine tanks, in naval war ships) are vulnerable to massed attacks by smaller, cheaper, weapons using new tech that we haven't used like this before.
Patrol boats are fine for low intensity coastal security missions but mostly useless in any high intensity conflict. They can't operate effectively far from shore. And close to shore you might as well use land based aircraft and missiles.
If you deployed 100 patrol boats, each with 100 drones and no missiles, that is a cheaper, more efficient, more resilient solution that one ship with 1000 drones and a bunch of missiles.