It's not easy to see who to believe. The MP introducing it claiming there is a "cover up" is just what MPs do. Of course it makes him look bad, a service he oversaw the introduction of is being withdrawn. The rebuttal by the company essentially denies everything. Simultaneously it's important to notice the government are working on a replacement system of their own.
I think this is a non-event. If you really want to read the court lists you already can, and without paying a company for the privilege. It sounds like HMCTS want to internalise this behaviour by providing a better centralised service themselves, and meanwhile all the fuss appears to be from a company operated by an ex-newspaper editor who just had its only income stream built around preferential access to court data cut off.
As for the openness of court data itself, wake me in another 800 years when present day norms have permeated the courts. Complaining about this aspect just shows a misunderstanding of the (arguably necessary) realities of the legal system.