The game "Your Place" started out with futa on male before moving to include male on female and male on futa (and a bit of futa on female). Blossom of Pleasure spends the first chunk of the game strictly as a femdom game with strong humiliation elements, that suddenly shifts and allows you to choose to stay femdom, go pure maledom, or play as a switch and get both. 17's other game UFO started with primarily male on female focus and the futa content was optional and very little, before eventually it changed to include a futa on male scene anal scene that was not optional. The list goes on and on, there are tons of games that have done things like this.
Games change as they go through development. If he's asking for feedback, and sees that there is a lot of people who would like to see male on futa, or futa on female, or futa on futa, or anything other than futa on male, then perhaps he will add that to this game, or to one of his other games, or to the inevitable next game he releases while the rest of his games remain unfinished
.
A game that is this early in development could literally go anywhere. So
any feedback that can potentially help guide it's direction for the future. If he decides to ignore all that feedback and stick to just being a futa on male only game, that's his perogative. If he decides to take their feedback into consideration and at least include other content besides
just futa on male, it may not appease everyone, but it might be enough for some people to enjoy it. And if he decides to take some of that feedback and either implement it his other games, or implement it in any future projects that he may do (hopefully after finishing some of the projects he's already got ongoing *glare*), then so be it.
The point is, it's still feedback. To even use your previous analogy: sure, generally you wouldn't expect someone to go into a McDonald's and tell them they want a pizza. But if people wanted pizza from McDonald's, McDonald's would appreciate that feedback (just not by going into the individual store, by sending that feedback through "proper channels" or even through social media campaigns, etc). Also, McDonald's literally used to have Pizza, so that's not really a great example
. But if people really wanted it brought back, and started making a fuss about it online, that's the kind of feedback that might get them to consider bringing it back, at least for a limited time.
And that's what is happening here. One person mentioning that they aren't into futa on male and would prefer male on futa (or other content that isn't futa on male) is one thing, but if person after person is saying that, then it - at the very least - shows the dev that there is a demand for some variety, and perhaps he may think of making those changes. Devs have made MUCH larger changes on games with much more content than this when there was enough fan demand for it. Not saying that will happen, but people give that feedback - especially this early in development - in the hopes that it could.