I suppose it's allowed to look like a Schafer, as really there are that many bows out there that sooner or later there are going to be similarities. They can't all be vastly different to each other. Plus, Paul had a heck of a good design that works very well, so it stands to reason that other bowyers could draw inspiration from it - I know I sure would if I could make anything beyond a cup of tea!
As always, I'm allergic to saying that bow x is better in any way than bow y, as from browsing magazines and forums, all bows have their admirers and defenders, and all bows are utilised and loved by very capable hunters. They all seem to work very well indeed on game.