If they left the project that doesn't mean they will not come back when Libra will be successfully launch.
Maybe they are just playing safe at the moment as Libra has been criticized by the government but since its not operational yet, its not a big deal though.
The influence of Libra is huge what they need to focus on is just to have a successful launch and good news will follow.
That's also what I'm looking for, these companies that left Libra will go back when it is safe, they have an interest to protect and they want nothing to do with Libra coin now, but things will change after they soften these adversaries, but everything is yet to be seen, so we have something to watch out for next year.
As Libra was not launched yet, any partnership can only be use once they start to raise funds, but actually even if without partnership during the launch, they can still get funding from different investors if they will open this up to a crowd sale where even small investors can participate.
They all have the option and strategies on how to raise funds and with their reputation and money, they'll surely be able to raise funds for this project that's why this factor was not emphasize much because people are more focus on the regulatory compliance.