If this article's to be believed, there was supposed to be a much bigger splash when it was launched:
The Chaos Of The New Independent Group Meant Only 7 Out Of 30 Potential Labour Rebels Quit
Around 30 Labour MPs held talks about leaving the party and joining the new Independent Group in what would have been a far more damaging assault on Jeremy Corbyns leadership, but most decided against amid chaotic disagreements between the plotters over strategy, organisation and personalities, BuzzFeed News can reveal.
Senior Labour figures involved in the breakaway plot confirmed that the original plan, conceived at a series of meetings last year, was for several dozen MPs to quit in one go. Only seven went ahead with the plan on Monday.
The mass departures didnt happen, they told BuzzFeed News, after a series of behind-the-scenes differences of opinion between rebel MPs, on everything from the overarching strategy of the movement to more specific questions like the need to fight by-elections and whether ex-Labour MPs who left the party amid sexual harassment allegations should be allowed to join them.
...
The fundamental divide between the Labour splitters is over the new party that will emerge, the sources said. Several MPs including Chris Leslie and ringleader Chuka Umunna hope to be at the forefront of a new centrist party modelled on Angela Merkels Christian Democratic Union and Emmanuel Macrons En Marche.
The Leslie-Umunna faction is being challenged by a rival splinter group led by a number of former advisers to Tony Blair, including his former chief of staff Jonathan Powell and speechwriter Philip Collins, who have been holding meetings with the aim of forming their own party.
https://www.buzzfeed.com/alexwickham/30-mps-labour-independent-group