Unfortunately the relationship T212 has with their intermediary isn’t the same as that which we have with T212.
They can’t simply rock up and say something along the lines of “Do we take all our functionality and customers and use a different intermediary?” in the hopes of fearmongering IBKR to provide a more stable service. There are contracts in place and periodic service reviews and KPIs to be met. If IBKR continues to deliver shoddy services it’ll no doubt hit them in the pocket as T212 will likely be able to command service credit rebates.
So it’s in IBKR 's best interests to fix their sh*t.
And if the tin hat brigade are right and there are bigger conspiracies at work here, and IBKR are willing to absorb the penalties, then T212 will have a decision to make come contract renewal time. But they can’t just pull the plug without an alternative in place. They would cripple themselves.
But if you were a highly profitable business that was dependent on a third party for your data feeds, would you publicise your intentions to move or (better yet) go solo on your 2021 roadmap for all the world - including your current intermediary - to see?