Pros here (Australia) never shot Astia (this is known from the photographers' pool that submitted images to the lab for all-in schedule printing). Provia was a better choice if less contrast was desirable, though the trade-off is that the colours are nowhere near as punchy.

Yes it's easy to avoid issues with e.g. Velvia by exposing it in the conditions it was primarily designed for, all the more important for Ilfochrome. I don't expose Velvia any different now for hybrid print production. Many interesting things were learnt from production to Ilfochrome, (apart from supply and diminishing QC issues!) including the amounts some pros were spending on the stuff e.g. Peter Lik, Peter Dobré — both at the time into phenomenally pricey mural-size 'chromes (3-4m across).