I think debridging came about as a side effect of dewicking originally. Especially since most atomizers are a major pain to get all the fibers out from inside the barrel (510,901,801, etc). If you leave one or 2 fibers of the wick under that bridge somewhere, you will get an even worse burnt taste than having the entire wick in there, in my experience. It is just plain easier to rip the entire bridge out than to extract just the wick. 306's are a no-brainer since you can easily access just the wick and leave the bridge intact. I personally leave the bridges on because I've found that with many of the low-res atty's I will get some hot pops of juice on the tongue occasionally if the bridge is not there. Also, leaving the bridge on allows a drop or 2 of juice to linger in the mesh in close proximity to the coil and you get a few more "golden" drags than you do without a bridge.
Just my 2 cents, as a long time dripper....