We use Panasonic P2 cameras, and Final Cut Pro 7, for the very reason, it still works, and as long as there are ways to overcome issues, we will still stay, maybe in the future migrate to something a bit more modern...
I showed what I thought would be the ideal tool for tv news video editing, that controller has every aspect of tv news video editing covered, and no, I will not be discussing that idea over on the blackmagic forum, I did once and was abused to the point of being banned, only for posting an idea, really brutal abuse, so no..
I have worked in broadcast since the mid 1990's, U matic, to Betacam, to SP, through DVCPRO, then FCP 7 and P2 cards... Having grown up using controllers, no keyboards, I have a deep love of controllers, and if someone started selling that controller for FCP, for $2000, I would fund, no question, as I think it would take minutes off each edit, I could get through the edit faster using a controller.. I miss having the controller, the jog/shuttle, press a button, pressing the auto edit, it helps focus when you don't have the option of a redo...I miss the tape editing so much it hurts..