I stopped in at the LC/RC site to read their "history," which is crisp and sanitised. No surprise there, although there is mention of the creation of “Gente Nueva” in 1984 which I'd never heard of before.
A team of Regnum Christi youth in Mexico City founds “Gente Nueva” (New People), an organization that aims to promote human values among young people. It was the first apostolate in the Movement which was founded by lay people. It quickly grew, expanding to other cities and countries.
Perhaps it's just a Mexican entity? And was anything ever really initiated by lay people without express direction from the Legion? The point here is not to flog the dead horse, but to note once again that the entire question of financial impropriety and cultishness was never admitted. Still, I would simply say to new recruits to consider carefully that the remaining Legionaries lack a healthy self-knowledge, and repentance for complicity in the cover-up of Maciel's deeds has never been manifest.
Are there other things in that historical outline that raise red flags for readers? It is curious that they claim that they had no mission until Pope Pius XII insisted "that the new religious congregation must contribute to the formation of Catholic leaders, especially in Latin America." Convenient, to say the least.