I'm not that sure your concerns are all due to Abbado's fault. The recording can have a great impact too. I wasn't at Berlin for that 8th, thus can't really comment there, but I know Lucerne very well being there at several concerts all years (all Abbado-Mahler ones included). I still remember the visceral impact the Lucerne organ was capable of in the Resurrection of 2003. Then, DG obliterated that impact, releasing a contricted, bass-shy recording which doesn't make the KKL acoustics any justice. Euroarts did a better job and reached a very good quality level on more recent releases, although in the stereo track the organ (and most of the orchestra's lower registers), while being more present than in the DG recording, is still far from being something remotely similar to what I could hear that evening.