Also, when turning the spigot (I turn it to 90 degrees for whirlpooling), I always try to go clockwise, so it's going in a tightening motion rather than counter-clockwise which might loosen it.
I started BIAB about a year ago, and have medaled in a few competitions. Not to brag, but to point out that BIAB is valid.
I think it's more process. QC, sanitation, recipe development, temp control, etc.
I have no problems using the Riptide. Not sure about the abilities of smaller pumps.
You do get the advantage of better temperature control of the mash.
I've just crashed in the Fermonster (7.9 g). It did suck the sides in, but they pop back out with a little pressure, or return to original temp with no ill effects.