It's absurd for anyone to have any doubts about this game, in terms of importance to sony's position as a platform holder, or the industry at-large.
Shawn Layden outlined sony's first-party game philosophy of "First, Best, Must". You can read about this philosophy here:
https://comicbook.com/gaming/2018/06/30/playstation-first-party-lineup-sony-boss/.
It's pretty obvious this game fits in with that philosophy to a tee, and of course there have been mis-steps in the games they have given the green light to in the past, but in no way, shape or form should anyone be doubting this game in pretty much any capacity, because it fulfils the criteria of what Sony hope to achieve with their first-party offerings so well.
That's not to say this game will sell gangbusters or anything, of course not, but a large part of that will come down to the marketing and PR, which is mostly handled by Sony directly. The point is, no matter what it sells, it's probably still a success in Sony's book, just to have a game such as this in their exclusive portfolio. Do they want it to sell millions and become the next gaming cultural phenomenon? duh... However, one thing is for sure - the success of this product won't be dictated by how many units are sold, but instead, it will be based on how well Media Molecule executed on its core vision of putting these tools of infinite creative possibilities into the hands of the average gamer and making them accessible to everyone who owns a PlayStation... based on this criteria, Dreams is already a rip-roaring success, even before it has reached gold master.
People can shite on about any shortcomings, but as far as I can see, this "game" is the most immune to criticism of any single piece of console software that has ever come before. I'm not gonna keep waxing lyrical about how it's a full (VR) game engine, innovative rendering engine, 3D modelling and texturing package, Digital Audio Workstation, etc. etc. etc. all rolled into one, and how you can literally create
anything that you can imagine. How can anyone, with even a passing interest in games or digital creative mediums hold anything against what this product sets out to do, and the level to which they have accomplished this, thus far?
Of course, there are still some unknowns and what could be considered some downfalls such as the lack of monetisation and the lack of mouse support being the two major points against Dreams.
Anyway, some here might say it's crazy to have so much positivity, or to even have this much of an opinion about a game yet to be released, but I'm going to say it now: I believe Dreams is going to score insanely high in reviews, with an average score in the absurdly high 90s. I'm gonna say 98/100. And sell 10million+ copies at least across PS4 and PS5. We'll see.