Their concerns seem grounded in reality, as Germany does censor Reddit[1].
1. https://www.reddit.com/r/ChillingEffects/comments/3gw9g1/201...
1. https://www.reddit.com/r/ChillingEffects/comments/3gw9g1/201...
The BPJM does not have authority to block foreign websites. They do maintain a (non-public) list of websites deemed harmful to the youth which e.g Google uses to not show certain sites to German users. They planned to add that subreddit to this list.
That's quite far from censoring but rather Reddit censoring itself.
While you're completely correct, and this case is exactly that, the end result is the same isn't it?
Reddit (as a page) is still up and running for everyone. I can't see how an app would be more controversial.