Your source of information either does not want to help you learn proper form and bow tuning, or you need to find a better source.
This is the same type of crap that I heard when bows started shooiting over 250 fps (you can't shoot broadheads at that speed), and when bows started shooting over 200 fps, and ...........
For the last couple of years I have been shooting broadheads at 295 and 302 fps respectively. Both bows digested Beman Hunter 340 arrows at 70 #, 29" arrows, 4" plastic fletch, and fixed broadheads (Muzzy 100 Gr, Interlock 100 Gr, Steelforce 100 Gr Titanium and SS Premiums). I need to shoot at different spots so I don't destroy my arrows.
Learn proper form, tune your bow, and go with a quality fixed blade broadhead if you so desire.