On the measurable, the fact that some has found that the measures were wrong is encouraging. It can be monitored. When will we find out if tree planting offsets do not happen? Years or decades down the line. In this case I think it is probably fixable - obviously the new stoves are not as good from the users point of view. I suspect outside experts designing things without user input - they should be treated as customers and their feedback incorporated early.
I think you are entirely right about reluctance to change some people's lifestyles, but is not as simple as "rich western" vs "poor non-western". For one thing, the world is not longer that simple - there are plenty of rich non-western countries. Even economies that are not as rich per capita as a whole, have both substantial rich groups and regions within them and they have large economies (and CO2 eomissions) in total.
Also, it is western countries that have reduced their emissions the most. I linked to a blog post of mine with a graph before: https://pietersz.co.uk/2023/03/co2-emissions-will-keep-risin... on HN.
The problem you mention happens a lot within countries. It looks to me as though, for example, net zero policies in the UK will affect the lifestyle of the rich far less than that of the hoi polloi.