I agree! The concerns must have been very serious indeed to overcome Amazon's strong incentives to not bring them up and let Anthropic keep pulling in the revenue from their new frontier model.
(Could the explanation be that Anthropic doesn't take the power of modern AI seriously, and they only pretend to as a marketing strategy towards people like me? I can't rule out the possibility entirely, but I'm still pretty confident it can't be as simple as a deliberate IPO pump and dump, there's too much that doesn't make sense from that angle.)
Hyping an investment, as mentioned.
If they have continued access, being able to use the tool when others cannot to get ahead.
Amazon's incentives are not so clear or simple as your first interpretation. It's important to think about these things beyond a moment's glance. With practice you will improve!