Are you saying the "all" feed is dark pattern design to trick the user into thinking they're looking at all the listed relays when they're not?
my guess is that it's because you are not logged in so i can't know your relays, and it's using the default relay set to fetch the "all" timeline. probably your poast is not in any of those default relays. the code is at https://github.com/verbiricha/habla.news there is no censoring on Habla's side.