No Pax, to administer even conditionally a sacrament without first investigating validity risks committing a sacrilege - if the sacrament was valid in the first place.
There's no need to investigate a 'positive doubt'. That's an oxymoron because a 'positive doubt' means it's already been investigated! Only a 'negative doubt' needs to be investigated.
A 'negative doubt' is someone who has been arrested based on suspicion only and interrogated/investigated.
A 'positive doubt' is like a person who has been arrested and charged with a crime. The cops already have evidence enough to charge them and setup a trial.
But the person can't be termed innocent/guilty (i.e. valid/invalid) until the Judge/Jury (i.e. Church) decides.
In the meantime, while we wait for the Church to decide, the only thing to do is to "conditionally" ordain/consecrate (i.e. post bail, wear an ankle bracelet, and go on probation).
In other words, the person is treated as "guilty" until the Church decides. This is due to the evidence which supports is guilt.
As +ABL said: "that we must do an inquisition, (a study of each case) to know what the situation really is... Otherwise, if I think that his ordination his valid, really valid, then I have no right to repeat the Sacrament. (NB: It would be a grave sacrilege to knowingly do so).”
Yeah, this might have applied pre-2000s, with valid bishops alive. But now, no.
Don't you know that to repeat a sacrament even conditionally, is a sacrilege if the first one was valid?
A conditional sacrament doesn't repeat anything. That's why you're confused.
That the only one who can issue the decree that all NO ordinations are invalid is a future pope? I don't get you.
If tomorrow +Francis declared all new rite consecrations/ordinations invalid (let's assume he converted), then you wouldn't "conditionally" re-do anything. You'd use the regular, non-conditional formula.
The conditional formulas exist PRECISELY for doubtful cases, wherein the Church has not decided and won't decide soon. People can't wait around forever, thus, in Her wisdom, the Church created "conditional" formulas.
You're saying all NO ordinations are always invalid, but not always, so just conditionally ordain them to be safe. Do you understand if you are wrong, and if bishops who think the same way are wrong and wrongfully go ahead and repeat the sacrament, sin? You see nothing wrong with this?
A conditional formula, based on a positive doubt (i.e. evidence showing problems) is not a sin. That's why the conditional formula exists!! For doubtful cases!
Why is this so difficult?