Earlier quoted context omitted.
Most authors of scientific papers will gladly send you a free PDF of their papers if you ask them (assuming they remember to check their e-mail and respond in the first place). The profitability of their publisher is of no concern to them.
This is a solution that doesn't scale for authors or readers. You'll just end up building another sci-hub.
That's the point: that the authors also support sci-hub, because it's simply doing what they would do themselves, at scale.