All I'm saying is heat sinks are a thing.
Pfftt, next thing you'll be telling me that having the shield projectors for your entire ship mounted above the bridge in an unprotected and exposed position constitutes a significant design flaw!
The one advantage of the Star Destroyer Bridge design is that it provides a target for everyone to go after- and when dealing with fighters, you can easily focus fire in front of it.
that said it is also a weakness.