Don't see the point in blaming him.
One of the following:
- It is his own real reason, and he's entitled to do whatever he likes with his business (unlikely)
- He received pressure, but obviously he will not say it publicly (possible)
- He has read the writing on the wall and decided to leave and enjoy the profits before they put him in jail (likely)
Theres also the chance that Bitmixer was compromised and they have only discovered it recently. All their activities and secrets are known to the government and have no choice but to run and hide.