So basically throw caution to the wind and lose money to appease a vocal minority with this arbitrary measurement of acceptable quality? I cant really imagine a scenario where that would be a good business decision for them as it stands right now.
I just don't see why delaying the release of main games will translate into losing money, if everything else keeps going on.
HAD THEY PLANNED IT LIKE THAT, the SM anime could've perfectly extended for another 100 episodes before the league if they wanted to, because of the direction they took with these seasons. The episodes weren't following the game's pace and were filled with stories like Rotom going into acting and whatnot, stories that didn't even need to feature the Gen VII Pokémon (thus proving how having new games/new Pokémon so often isn't necessary at all). Ash wasn't even traveling anymore, so they weren't even tied to the fact that he was running out of towns to visit or something (and it's not like they can't come up with their own places as they've done since forever) or gyms to defeat.
The TCG expansions always feature legendaries / Pokémon in general from past generations, even more than the current one. Same with toys and other merch. The movies from this generation didn't feature more than 10 Alolan Pokémon combined.
I'm not saying or expecting things to get delayed NOW, because I know plans have already been made. But I'm talking about the future of the franchise.
People always freak out to the idea of Pokémon total reaching 1000, as if the Bible said the end of the world will come when that happens, but with the pace they're releasing new generations, they'll reach that point in less than a decade, even if they keep introducing 70-80 Pokémon. I just don't understand why they haven't slowed down yet.
I know there's no benefit in discussing the National Pokédex at this point, since I know there's no turning back and we've discovered these past weeks that now it results that the majority of fans have never really cared about the Pokémon to begin with; as you say, it's only a vocal minority the ones that have a problem with it, and as it's happening, they won't appease our wishes, now, or ever again in the future.
However I think this is beyond how many Pokémon will appear from now on, but what kind of games they'll deliver in the future. It's clear for what we've read in the OP they're not prepared for the future of gaming consoles and the time investment they'll require to develop a decent game in the next years with the technology always evolving. And it's not like they're sticking to the Pokémon that'll appear in SwSh from now on. They're supposedly introducing the missing Pokémon from SwSh in the following games, so they'll always have the excuse that they needed to migrate those missing Pokémon thus couldn't improve in other aspects of the games. Then Gen IX will come and they'll start all over again. It's a never ending story.
What I mean is, even if they keep cutting Pokémon and we never have a full roster, as obvious and inevitable as that measure was for some people, to me is just as obvious that they need to stop at some point with the yearly releases, and those pointless sequels like USUM and focus in making complete, decent games, even if they take 4-5 years to be finished. They'll make the same money, if not more, as if they released the incomplete SM one year and USUM the next one, only that they'll get it all at once for the same game, and of course it'll take longer to see that, but at least they'll please a bigger spectrum of the fanbase.
Meanwhile Pokémon can survive with spin-off's / Pokémon Go, any kind of app they release, merch, etc, and GF will have its main projects that aren't Pokémon as well. I think to me it was even more obvious to go that route of delaying main games before cutting Pokémon creatures, but I guess I'm just insane and delusional.