I would not board an aircraft that has a history of problems with this.
Which aircraft would that be? The article describes one (yes, just one) instance of a fuel imbalance leading the crew to return to the departure airport. The reasons for the other diversions are not articulated.
FWIW your EU list shows restricted airlines not individual frames. At the end there are two airlines (Iran Air and Air Koryo) where subsets of their fleets are restricted (whole types not individual frames). With Iran Air it's likely that the restricted types are ones where sanctions make maintenance or safety compliance impossible. With Air Koryo the EU banned a bunch of unpopular Russian and Soviet types that are either way too noisy, incapable of meeting current safety standards, or are unsupported by the Russians.
FWIW your EU list shows restricted airlines not individual frames. At the end there are two airlines (Iran Air and Air Koryo) where subsets of their fleets are restricted (whole types not individual frames). With Iran Air it's likely that the restricted types are ones where sanctions make maintenance or safety compliance impossible. With Air Koryo the EU banned a bunch of unpopular Russian and Soviet types that are either way too noisy, incapable of meeting current safety standards, or are unsupported by the Russians.