I'm not going to say people shouldn't be posting their feelings about the software but from what I am reading, there seems to be a lot of speculation that can better be described as "wild guessing" because there are facts not in evidence.
I am a novice game designer and am trying to get my own game company started and, as a developer of software, I am going to side with the developers on the issue of PG2.
I was not a Steam user when JNPG was initially presented and released (or even "promised") and I am not going to go back and read through 4-5 years of posts. But one of the recurring things I see posted is that JNPG is "unfinished". Number one, almost every piece of software ever created is "unfinished". Number everything else, where is it written that a golf game has to have "X" feature(s) to be considered a "complete" or "finished" game? At some point, if software is going to have any chance at making money, it has to be released at some point and decisions have to be made as to what features are available for initial release and what features will be added later if sales can support future development. If you can drive, pitch, putt and receive a score for your round, that's pretty a complete golf game in my book.
A common complaint about JNPG is no Career Mode. How long would it have taken to implement, debug and support vs how many more units would JNPG have sold if career Mode had been available? No one can know for certain but it's a question that a development team has to consider.
In this thread it was postulated that 3-click is so old school that it shouldn't be developed and supported or even an option in the game. What would be the difference in sales if JNPG had Career Mode and no 3-Click vs 3-Click and no Career Mode? Personally, I'd pass on the game if there was no 3-Click.
What is probably the most common theme for games, especially mobile games? In-app purchases. For some games, Like Animation Throwdown: The Quest for Cards, ridiculous sums up to $99.99 US. Some of the players have to be spending thousands of dollars for them to have the decks they have. The common complaint I see for in-app purchases is that people can pay to be the "best" player and that skill has very little to do with it. I play several games on my phone and it's obvious that most of them are coded to penalize players for not spending money on in-app purchases. I have one, a top down space shooter, where the top ships and top upgrades, require hundreds of crystals. I won't spend money on them but I am not even allowed to earn them - I have earned 99 crystals and that's all the developers allow - I have to pay a subscription to be allowed even to earn the crystals.
I plan on releasing games where the focus is on developing skill, not "buying" skill. Is this a bad idea? I don't know. if I released a game for $1 US that had no in-app purchases and required skill to be the best player, would it make any real money? Do people simply prefer to download "free" games and ignore in-app purchases and would pass over my game because it isn't free? I guess I'll find out. Maybe in this world of "instant gratification", no one cares about skill and all that really matters is how much you're willing to spend to "level up". Maybe instead of a High Score board I should implement in-app purchases and "pay to win" and have a Biggest Spender board.
If the developers started talking about PG2, what do you think would happen? There would likely be all kinds of demands/suggestions. All kinds of complaining that this or that isn't being discussed as a feature and threats of not upgrading. Accusations of false advertising if the game didn't have "promised" or "hinted" at features. Etc. Very discouraging for a developer.
I spent $35 a couple of months ago for JNPG and I'm happy with it. I looked long and hard at The Golf Club but in the end, I didn't like the look of the game. I like the look and feel of JNPG - sometimes I can almost feel and smell the environment.
I hope we see PG2. But I'm not going to speculate on it or complain about any lack of information from the developers. In the meantime, I'll keep playing JNPG.
To hell with you doom and gloom dudes. 
