> Not a single line about what is the issue with those papers

Well that's a blatant lie. Here's a quote for you:

> After submitting that draft to the Elsevier finance ecosystem, that draft was scrubbed from SSRN, and in the final published version, an additional author (Samuel Vigne) was added as a new author, with an “equal contribution” statement

That's EXTREMELY BAD. It's someone approaching your team after the research is done and asking to be put on the paper in exchange for publishing it.