It's still horribly vulnerable.
High Guard does not go into what happens when a Collector ship is shot at, but you'd expect a deployed canopy is going to be pretty easy to shoot up, and can't be protected by armour. And it can't use thrust while collecting.
And... are people building these ships remembering that the Collector is just the jump power source (I expect so, but we all make oversights...)? You do still need a J-Drive for it to juice up. The whole set up is more expensive than a J-Drive alone. And you still need a powerplant for other ship requirements.
High Guard does not go into what happens when a Collector ship is shot at, but you'd expect a deployed canopy is going to be pretty easy to shoot up, and can't be protected by armour. And it can't use thrust while collecting.
And... are people building these ships remembering that the Collector is just the jump power source (I expect so, but we all make oversights...)? You do still need a J-Drive for it to juice up. The whole set up is more expensive than a J-Drive alone. And you still need a powerplant for other ship requirements.