I find Baskerville pretty readable. Is it the same font you're seeing on the page? I wonder if something caused your browser to show a fallback instead.
I think it reflects that all phones made in China have the potential to be compromised by malicious actors. That risk shouldn't be in most people's threat model, and if you're comparing the Librem to a standard Android phone you're still getting a substantial privacy bump just from hardware kill switches alone.
If you have a very specific threat model, Purism is now one of the few companies that offers made-in-US phones, which (in theory) fills an underserved niche. But most people who want a Librem 5 should get the normal phone.
If you have control over the entire assembly process, that eliminates a class of security risks that otherwise need to be addressed with tamper-evident firmware or by checking for bugs and extra components after the phone is assembled. But that drives costs up substantially, so nobody assembles phones in the US -- not even companies like Apple.
Remember that security isn't binary. Different segments even within the privacy community need different levels of security.