It's detailed, not forgiving. Big difference.
The Mark Levinson and ELS systems in Lexus and Acura, as well as systems like BEATS Audio, Bose, Monsoon, etc...are generally designed to sound very good on a wide selection of music by being forgiving to harsh frequencies. Generally this means they are rolled off or deemphasized. This tends to color the sound in a pleasing way, smooth and warm although the amount varies from system to system and car to car. It is definitely not bad and exactly what a lot of people want. Mark Levinson in particular does it in a really great way.
Systems like B&O, HK, B&W tend to more exactly reproduce the sound as it was recorded with less coloring, and definitely no forgiveness. If anything they will highlight harsh production like a 5 year old telling on his big sister. I personally like the systems that are more detailed and precise but less forgiving, but that is in my ears. Definitely not trying to say one is better than another, it is all opinion when it comes to sound quality. If you like it, you are 100% right every time. Same thing if you don't. Just trying to give an idea of where I am coming from when I talk about what I think is good sound.
As a reference I consider great production to be anything by Pink Floyd and Tom Petty, Beastie Boys - Paul's Boutique, Fiona Apple - Extraordinary Machine, Johnny Cash - all the American recording stuff, Anything Quincy Jones has ever done, and every single project Mike Patton touches (Faith no More, Handsome Boy Modeling School, Mr. Bungle, Tomahawk, etc....) so that is the stuff I am looking to sound good. Everything else 80's, 90's, 2k rap, pretty much all pop, southern rock, modern rock/alternative (love Nirvana - still remember where I was standing when I heard Cobain died, can picture it in my head - but the production really is garage quality) I kind of want to sound harsh since that's what it sounds like. I don't want the system to cover it up, to me that is bad sound. I am also a freak.....
Should also add, I don't turn the system up really. I did a few times to get an idea of what it sounds like and IMO above about half volume the digital amps begin to compress the signal to avoid distorting. That compression sounds like pure unadulterated crap so I avoid it...if you are blasting this system...yeah it won't sound good but the base is worse in that regard. To me the compression artifacting might be worse in the Stelvio (more aggressive) then some other cars, but they all have it so I just ignore it and keep that volume low enough it doesn't bother me.
...I spent my teens and 20's designing and installing car audio systems in my personal cars, my pinnacle was in 2007 when I had 3 Brax/Helix amps (Competition A1, A2, A4), 2 3-way sets of Morel Hybrid Ovation speakers with custom wound crossovers in the front and rear, a JL audio 8' W3 in the dash and 2 10' Image Dynamics IDQ subwoofers in the trunk, all installed in a VW Eos. Along with full Alpine Ai-net time delay equalization, a touchscreen headunit with haptic feedback (it simulated the feeling of pushing a button when you touched the screen), optical connections with burr/brown digital analogue conversion and 8 volt signals to the amplifiers with 2 gel cell batteries in the back to run it all. Basically all the top sound quality components that could be purchased at the time, pure class A amplification for all channels including the subwoofers with every speaker (tweeters, mids, woofers and subwoofers) getting their own amplification. Total over 1500 watts with THD (harmonic distortion) levels below .0001%. It was a work of art that truly sounded amazing even when loud enough to not hear traffic or the wind...with the top down....no audible distortion, until it got too loud for my brain to process. Then the transmission broke on the car, I had to lemon it...got the system ripped out, got penalized for even installing it....broke my heart and now I settle....but still, IMO for settling the Stelvio's HK system sounds better than the base system. Neither sound amazing....no factory system does, but the Mark Levison stuff does come pretty close and is way better than this HK system for sure.