Lower friction inside the product translates into lower expense ratios, tighter spreads and more competitive structured product pricing. The benefit is real but indirect — you see it in the all-in cost, not on a line item.
Investor-level taxation still depends on residency and the specific product. A resident Indian investing through an IFSC AIF Cat-III still pays Indian capital gains tax on their unit-level gains; the benefit accrues to the fund's operating economics, not to your personal tax bill.