The question is: How does ZOS balance content? Do they make content that someone/a group with less than 100 cp can complete or do they make it so that people with 500 cp and up can complete?

People with over 1k will face roll though content and people with less than 100 cp will struggle. That's the problem with the cp system, it creates such a wide power gap that it's impossible to balance the game around. ZOS even admitted that they knew this was going to happen. No idea why they introduced the cp system when they knew it was going to be a disaster.

Also, would have been nice if they held off on damage, streak and dodge roll nerfs until they fixed the cp issue