It can take as many as six shots at point blank range (muzzle to fur) to kill a large adult bear. One shot, or one arrow, is very unlikely to kill a large bear quickly and humanely. Inevitably, bears will suffer in agony for some time, especially those who are never found by the hunters.
The FWC says this is a scientific hunt but we all know this is just a barbaric trophy hunt. Email the FWC and ask them why the brutal bow is allowed to be used during this "scientific" hunt.