I also follow the events in Venezuela. We do not have a clear answer since we are not residents of this country.
I think people who live in this country can talk more about inflation and whether President Maduro's reforms helped in their lives. All the opinions that I could find on Internet from ordinary Venezuelans are very negative. Reforms are not evaluated by banks or the government. In my opinion, only residents of the country can honestly assess whether there is any sense in this coin El Petro.
I assume that like in most countries all reforms on the government level are not targeted at common folks, so they are not even aware of El Petros existence. Therefore, Petro coin is practically useless for most Venezuelans