Using effects makes their lives a living hell? Really? Then how come they have no problem using the guitarist's effects? How come they never say to the keyboard player, "OK, use only piano out of the bottom keyboard and only organ in the top one?" And how come it's OK to make MY life a living hell but not theirs? The hell with making their job easy. Nobody makes my job easy. And when they take away my effects, they make my job impossible. I already compromised on bagging the mic and using a DI because of soundmen, and there's no way in hell I'm compromising anymore. Not that using a REDDI is a bad thing by any means but it's about the only DI I like, other than maybe going out the back of one of my tube amps.
As for your argument against a mic, I rarely had a problem getting the mic'ed sound to sound like the amp. All I'd have to say is "Make my bass sound like my amp in the PA and the mix will be golden," and if they listened, it did, and if they didn't, it didn't. But let's assume you're right and it doesn't sound 100% identical to my amp...so what? Is that to say it can't sound good? Because I have a whole lot of evidence that it does, and way better than some cheap crap Whirlwind DI, that's for sure.