I mean, one could say anything really, but is it supported by the evidence submitted ? I maintain that in this case it isn't. The anti-vaping policies were implemented in 2009, followed by six years of decline in smoking rates. In the seventh year there was a slight reversal of the trend. Is it logical to blame the 2009 ban for the 2015 increase in smoking rates, while not commenting on the previous six years of decline in smoking rates ? What do you reckon the reaction in this forum would have been, if some groups were to give credit for the decline in smoking rates in Taiwan from 2009 to 2014, solely to the anti vaping regulations implemented in 2009 ? As flawed as that claim would have been, it still would have made more sense than the claims of the op ( absent any evidence not provided ).Well, you could say that despite the banning of e-cigs, the smoking rate did not continue its historic decline, which would be true.
It could very possibly be true that " anti vaping policies will lead to an increase in smoking rates " if there is no change in other factors that could also impact smoking rates. For example, if the strict anti-smoking regulations in 2009 were accompanied with the the promotion of vaping as a tool in THR, the drop in smoking rates could have been even more dramatic, but unfortunately we won't know.