It a fictional setting like games and porn, it's a very 'safe' taboo. In that it adds that 'this is wrong' element that people find hot, but it's (usually) portrayed as something very consensual.
Even up to a year is fine with regular information about development and worthwhile updates. Some of the most reliable long-term devs work this way and I think others would benefit by taking the pressure off and doing this too to avoid burnout
I feel that if we get a Dev that can really use AI, then it could be something special.
It's also a technology that will keep improving and there's defintely a space for it in VNs