Not sure about this, but from what i have heard...
Ascension winning team will get 2 months to find an org, it can go into a bidding war but there is more to it. the possible org that signs the players have to be approved by riot at the first place. moreover, riot would help them find the org, probably the teams that ended up out of top 10 during the initial partnership. (xset, g2 or any other #11,12,13 team). Thus it wont be sold slot and moreoff signing bonus for the players as riot wont be charging any money to partner them and instead pay equvivalent to all other league teams.
In the Guard scenario, it was utter foolishness by the org to sign a team for a year till Ascension, and when the team won, you stop operations and dont sign the requried aggrements. all that while playing with players future. Coming to riots decesion, buying out roster from guard would be sold slot for the IL 2024. hence the decision seems to be fair for the integity of the game. However i feel bad for the players.
The most logical solution was to, ask players to play under the guard name or some generic name "NAA1" and pay the 500k to all the 5 players instead of the org while a small team from riot can manage the communication for next year. Win-Win for everyone.
This way the guard as an org is punished, players are safe guarded, slot selling is out of the picture..
i can be wrong on few points and i dont claim 100% authencity or correctness of any of it. Its from just what i have heard from different sources