I have a buddy who started out making them. He now makes beautiful selfbows and laminates, but still whips out a PVC on occasion. I have shot them and would have no qualms whatsoever about hunting big game with one. He made several horse bow style bows and several longbows between 45 and 65 pound draw, and they shot only slightly less hard than my ERC selfbows. Plenty well enough to shoot clean through any deer and most larger game. They are no less traditional than a fiberglass bow or a carbon arrow or a plastic nock or a dacron or fast flight string. They still require time, effort, skill, and attention to detail to make and can be every bit as effective as a selfbow.
All that said, I much prefer my selfbows and hunt with my own almost exclusively. However, let's be careful about throwing stones at someone else's program without first giving some careful, objective, and realistic thought to our own program and preferences.