Withins, you are factually incorrect. The CAT3 trials were cancelled because it was discovered that another airline had previously run trials with very negative results and freely handed over those results to Jet2 - there was therefore no point in repeating them.
The problem is the displaced threshold and the dip thereafter, where the aircraft hangs in the air with an increasing pitch attitude and idle thrust risking a long, heavy landing and possible tail strike. The decision to abandon CAT3 at LBA was based on safety reasons alone. Every other operator but one has banned autolands at LBA for the same reasons, and that one has a much lower exposure because of much less frequent operations. Discussions, in conjunction with another airline (operating a different type, but who have also banned autolands) are ongoing with the airport authority. The airline will commence CAT2/3 operations when, and only when, it is deemed safe to do so.