Well, that “yes” within the Patriariarchal Territories is merely a qualified one. Even the quoted synopsis is clear that, while the Synod indeed “elects” its own bishops, Rome retains unto itself veto power. Ideally what happens is that the Synod submits a list of possible candidates to Rome in advance, and those who are approved may be “freely” elected. Now, if a candidate is not on that list of names pre-vetted by Rome, he may still be elected, but the results of the election are kept secret until such time as Rome approves the candidate, which can take months. And believe me, it does, indeed, happen from time-to-time that Rome rejects candidates elected in this manner (i.e, those not pre-vetted). There have also been cases where a non-pre-vetted candidate was elected by the Synod, rejected by Rome, and then ultimately approved by Rome upon Patriarchal/Synodal appeal.
The assignment of bishops is another matter. Within the Patriarchal Territories, Rome does not normally interfere in that process. OTOH, even a canonically elected sitting bishop must be approved by Rome if the Synod votes to reassign him in the diasporal lands.