One of the main use cases of a VPN is against governments, but a government making Intel compromise SGX is plausible given what we know from Snowden.
The US government also likely learned a lesson from early attempts at backdoors (RSA, etc) that this kind of things do not stay hidden and do not reflect well.
We've thought about this long and hard and planning to mitigate this as much as possible. Meanwhile we still offer something that is a huge step forward compared to what is standard in the industry.