Yes I guess this is where preferences matter more not quality of hearing (had mine tested twice in 12 months).
I think I've been spoiled by open headphones and more neutral sounding IEMs. On the Momentums I recently played a Jazz album and it sounded like the Bass player was standing out on the balcony. Put on the Alessandro's and brought him back inside and tightened up his projection.
The hunt continues for a closed, portable to my liking.
I've grown quite fond of the momentums despite not liking them too much at first either but yeah they aren't the most resolving or articulate and can get a little boomy however I really like them, you should take a look at the Bang and Olufsen H6, I auditioned it at length and it has a very open and spacious sound with superb detail retrieval and a much lighter tonality. I found them to not have enough bass for me, which probably means they would be just right for you.