Shunta made use of an engine similar to RPG Maker called WOLF, there's nothing unique to it. Many other artists have made use of that engine before.
Of course game production can be stressful and all, that's nothing new and is absolutley not the point here.
The point is the artist himself or rather the attitude.
No matter how arguably "good" his game may be, Shunta is just an asshole, period.
If you trace back the whole prodcution process of the game, especially his anouncements and generally (lack of)communication, convention participation, etc. it becomes crystal clear as to why Shunta has been antagonized by so many people.
Therefore it's no surprise at all that his game got almost instantly shared, a lesson Shunta hopefully makes good use of.
Moritake on the other hand is a pretty good example.
His games may seem a bit lacking in the story department and his characters tend to look quite similar (personal opinion), but he is 100% dependable.
He's not posting bullshit or gets away with vague news or release dates only to retract them later or in some cases just going silent for a period of time.
Also Moritake doesn't need to make use of pre-paid money before the actual release of a game, whereas what Shunta did was arguably a bit monkey business. When playing the full version of Management and compare it with the very first demo you can see how it hasn't improved at all. You can only wonder what Shunta has been doing with the game during all those several phases where it at first lay dormant for almost an entire without any information whatsoever about its status, then followed by more and more delays all the while the Enty support of course went on with plenty of excuses from him as compensation for the paying supporter.