How the camera footage looks is only one element within the decision matrix. Maybe they got a better deal on several PDW700 . Since this is a long running show I guess they would like to keep things consistent camera-wise before jumping to a newer camera every odd year since they are most likely heavily invested on that ecosystem (Discovery Channel's marketing department probably appreciates this a lot as well).
There are certain storytelling objective truths. Just like basic lines, shapes, and geometric forms provide the basis to aesthetics, I believe there are certain guidelines that provide structure to stories. I am all for the "punishment should fit the crime" approach to filmmaking if you want to go that way. However, unwarranted deaths happen all the time in real life and movies should be allowed to reflect that. In this case, I do believe that horrific death did serve a purpose. It set the tone for the off-screen genocide of thousands of people who were there. It also establishes how out of place humans are in the dinosaur food chain/environment (or why nature was wise enough not to have humans share dinosaurs' timeline). In the end, I think this is a futile exercise of nitpicking a film about a dinosaur amusement park.
I would be willing to at least consider it. Funny thing is that roughly five years ago we were drooling/demanding a fixed lens red scarlet camera with a 2/3" sensor for $4,000, today it just feels dated. However, if it has a good internal codec, variable frame rates (doubt it), and comes at around $1,000 I believe there could be a market for it.