Maybe? I wouldn't say there was any straw man argument here honestly. More just that they misunderstand issues regarding climate change. They think that people are saying that climate change is causing deforestation, and arguing against that. That's pretty easy to confuse with what people are actually trying to raise awareness of, which is that deforestation is leading to climate change (those same plants that thrive off the additional CO2 in the atmosphere can't do so if the additional CO2 in the atmosphere is there because they're already dead before they can take it out of the atmosphere).