There do seem to be some Catholics who don’t like Alpha. They make for interesting reading and make some good points:
The second page may be better - and gives proper references.
I can’t comment too much as when I did an Alpha course it was in an Anglican church. And sat in on part of a course being run for actors in Soho.
However, the Catholic Alpha course is meant to take the course “as is”. Given its lack of mention of many key issues about the Church and the Catholic life that may cause problems. If the videos by Nicky Gumbel are used, rather than having a Catholic teacher talk then the problems would be increased.
It’s not only that the things distinctive to Catholicism are left out to be covered in another course. It is that some things contrary to Catholicism are included. Things concerning the nature of the Church, the priesthood, the sacraments, etc. If Gumbel’s talks aren’t used (they don’t have to be) then whoever is leading could give correct teaching on these things, stick within the outline of the course and make it thoroughly Catholic. If his talks are used there will be errors.
There may be other problems when you consider that Gumbel presents a pretty specific pentecostal perspective on the charismatic gifts. In his talks Gumbel presents a picture of Christianity that almost says “come to Jesus, you’ll have a problem free life” (that’s a criticism from a friend who is a presbyterian minister).
Anyway, that’s all been negative. There are good things about Alpha. But there must be a more Catholic alternative that’s better.
That’s enough. My wife is home. Sorry to be so negative.