I certainly agree that no smoking should be allowed on balconies, unless the line sets up smoking and no smoking suites so that no "smoking" balcony is upwind of any non smoking balcony. Or perhaps that is not possible, so therefore maybe there should be no smoking on balconies.
The problem with "de-smoking" the suites would be gone, however, if certain suites were designated as smoking suites -- even though smoking might not be allowed on the balconies.
As one who smokes no more (almost ten years) the only problem (and it wasn't much) was the guy who smoked cigars on his balcony just upwind of ours. Cigars stank to me even when I smoked! But again, a small problem.
As we don't smoke, this whole buiness isn't going to effect whether we book Regent in the future or not. I do suggest, however, that the new Regent policy is just a little too close to a "ban" if Regent wants to attract international guests. At least, there should be "smoking" suites (even though balconies may be non-smoking.)