Larger venues I play with a sound guy I insist on micing my cab or at the minimum di-ing from my multi-effects. I spent hours getting my tone right, I'm not about to hand it over to a sound guy, as good as they may happen to be (same reason I never di straight from the bass - always route through my preamp and multi-effects). Smaller venues my rig is enough volume for the whole venue. Even when our keyboard player/defacto sound guy mics me up (he never di's me) he only uses it to capture overtones (he's something of an audiophilic technical genius when it comes to sound production - not sure why he wanted to be our keyboard player). When my rig is supplying volume for the whole venue I've got my settings and eq right (hours spent on tone remember) so it doesn't boom and sits in the mix nice at the right volume.
Most of the other bass players I know around town work exactly the same way. So I guess I said all that to say - in my opinion - no way; the amp is not dead, and shows no signs of distress either.
Most of the other bass players I know around town work exactly the same way. So I guess I said all that to say - in my opinion - no way; the amp is not dead, and shows no signs of distress either.