There are all sorts of myths which vanity presses and self-publishing companies encourage. Two of the most enduring are that publishers won’t consider debut authors; and that publishers don’t promote their writers’ books any more.
If that’s the case, someone ought to tell Jamie Ford so he can stop making such obviously delusional posts.
(He’s living the dream and deserves every wonderful moment of it. I hope that a few of us get there too this year.)