Statements like pacers going to T20 cricket or becoming uncompetitive away from home as a result of these pitches are ridiculous. As if our pacemen weren't already going towards other forms of cricket before we moved towards spin friendly wickets, or that we were competitive in Australia and SA before.
We haven't won or drawn a test in SA or Australia in close to two decades now, even during the days when we had more competitive pitches, so pitches would have nothing to do with it. Bringing pace friendly pitches won't make much of a difference in SA or Australia because it's not swing or seam we struggle with but rather extra bounce, and extra bounce is not something you can easily create in Pakistan due to the weather. We haven't had terrible records in NZ or Eng because bounce is less of an issue on those pitches, swing and seam we have been able to deal with better. If you look at our domestic cricket, it's been dominated by medium pace bowlers (Abbas, Sadaf Hussain, Tasbish Khan etc) for a while now because those pitches are seam and swing friendly, so our batsman have been fine with it outside of home.
India have been playing on spin friendly wickets for ages now but seem to be only getting better at playing conditions outside of home rather than struggling . What's more important is exposing your batsman to these foreign conditions through A-tours, something India has been great at over the past decade (I think every young player has come through the A-team) but we haven't used a lot.