It is an reckless business practice to not have the monthly price locked down, with strong contractual protections. Sounds like Correnti didn't negotiate well and are now finding out.
Agreed with this, and it also doesn't seem like this is the case but I'm generally a fan of charging B2B as high as possible to lower costs for regular consumers - other companies will generally pay a lot more even if it just includes the potential of getting better support, and that profit can be used to give access to more people at a lower price.
A lot of open source software uses this model - free for everyone, but if you're a company that wants support then you have to pay for it, and that covers the development for everyone
The price increased by $10,000 per month. United's 737-800's seat 166 passengers, so assuming each plane has 5 flights per day, that would only make the average ticket about 40 cents more expensive.