I am not sure I follow. 'Donating the future product' is how compatibility is maintained (and it is not the entire product, much like the SRD today is only a bare-bones PHB + DMG + MM)
What I mean is.
When 5e came out, a 5e SRD also came out.
There will not be a 2024e SRD. (At least that is the intention, barring actual math or structural incompatibility.)
The 5e SRD has a minimalist set list of gaming features. For example, the Wizard class has one of its subclasses, Evocation.
2024e will be a noticeable edition change. (I am on board with the 1e to 2e comparison, in the sense of reorganizing and recharacterizing.) But 5e content will continue to be usable in the 2024e version of the game.
However. 2024e will add new options for the Wizard class, and continue to add new options as the years go on.
Hasbro-WotC doesnt want players to access these new option without monetization.
Hasbro-WotC will leave the minimalist 5e SRD Wizard as-is.
The official Wizard will evolve. The 5e SRD Wizard will be left behind. For example, maybe there are new subclasses that redefine the Wizard class, similar to the way the Hexblade redefines the Warlock. Perhaps features relating to subclass at level 3 become a big deal. Whatever. The 5e SRD will see none of this.
Hasbro-WotC will make it difficult to both rely on the SRD and integrate new official features.
It is somewhat like the distinction between SRD and DMsGuild is now. But the gap will increase. The conceptual differences will diverge, and what they share in common will be less and less recognizable, like the stark differences between some settings.
Hasbro-WotC wants independent "competitors" to split far away from the new products it monetizes.
The history of friendly back-and-forth between official inspiring independent, and independent inspiring official, are now less friendly.
Hasbro-WotC doesnt want independent options in official platforms, except when strictly under its own terms that can be draconian. Viceversa, it doesnt want official options in independent platforms.
Hasbro-WotC wants a walled garden and unambiguous control of it.
Moreover, technology in this century is a game changer.
Especially, Hasbro-WotC wants control of online monetizable ways of playing D&D.
In this era, when most players are active online and college friends move to different parts of the country and planet, virtual D&D is increasingly the way to play D&D. Hasbro-WotC has sought to monopolize this.
5 friends sipping beer playing D&D around a table, isnt where the money is. This isnt the future of what official D&D will be about. The 5e SRD will matter less and less, as 2024e D&D changes more and more. It is a "sea change". In the corpse in the deep waters, "those are pearls that were his eyes". Technology is a different way of experiencing D&D.
D&D is evolving. Hasbro-WotC wants independent publishers to cease to be part of this.