When Arduino split Arduino SRL, with the factory in Italy, were the ones with the Arduino trademark in most markets outside the US. Arudino LLC therefor could, presumably, only sell and manufacture device in the US. It seems reasonable that the companies licensed to manufacture Arduino in the US, and can't manufacture anywhere else nor sell to the rest of the world, shouldn't have to compete with Genuinos that are manufactured in China.
In regards to Wiring the project was open source, a master thesis and lives on to this day. It's just that Arduino is more successful.
You can surely doubt the professionalism of many people involved in Arduino, but more than that what happened here is that Arduino forked Wiring and Pimoroni found it cumbersome to sell Arduinos. People always say they want open source or more community driven companies, but when things get complicated not only are people quick to turn on them (which is many times understandable) but they make the situation worse trying to pile on all the things they feel are bad to justify their feelings.
I don't see it that way, especially when you consider how the whole trademark issue went down. And then refusing to pay royalties and strong arming Arduino suppliers. This was not a simple personal disagreement, but overtly hostile and aggressive business moves which hurt the community.
To your point, Hernando Barragán has legitimate grievances, but that was not the main problem that was resolved.
But when Arduino LLC tried to register the Arduino trademark, it turned out Gianluca Martino had registered the trademark for his own company two years prior, and not told the others. (Arduino LLC got the trademark in the USA, but were not able to register it anywhere else) This happened in 2008. At the time, they just agreed to stay friends and not make a big deal of it.
Then, last year, Smart Projects SRL made a big deal of it. They renamed their company Arduino SRL, registered arduino.org and cut their ties to Arduino LLC. This was reportedly because LLC wanted to start licensing the name to other manufacturers, but SRL wanted to keep official Arduino manufacturing to themselves. This led to the arduino.cc/arduino.org split.
That's pretty sleazy and anti-open source of them if you ask me.
https://arduinohistory.github.io
I think it's really appaling how the original inventor is (not) credited.
http://hackaday.com/2015/03/12/arduino-v-arduino-part-ii/
For a long while, most people didn't understand the turmoil in the arduino market. The competing arduino.srl tried to fork the ide and even the history of the project.
Here's a direct statement from Banzi Massimo: http://makezine.com/2015/03/19/massimo-banzi-fighting-for-ar...
You can write code for the devices in the browser and auto-include the C++ classes from other projects.
(or you can do it all offline with GNU tools)
Even though it was the biggest and most influential hobbyist electronics environment, there have been other mcu based environments popping up. Some were offshoots, such as TI's Energia, which added some innovative elements like an RTOS. Hopefully, the arduino environment moves forward even faster from now on.