To be honest, this is a call which rests in between Product, Sales Ops and Business Head. Typically, the product loses this battle.
But if you back up your solution with data, prepare a hypotheses and have conviction you can always ensure that growth can be managed with user satisfaction.
That is where A/B experiments really come into play. During my time, we ended up with zero calling (only inbound calls) on two LOBs and business never got hampered. The retention and repeat rates also went through the roof. Both these products were low ticket size products. So, this experiment worked as a POC, post that we did try implementing this solution across other LOBs, successfully managed to get 10% traffic diverted but a new VC changed the entire ecosystem.