They are bass light because they are tuned that way. I mean, if they were V shaped, people would have bellyaches that they had too much bass. So they give us something different, and people bellyache that they don’t have enough.
It’s different strokes for different folks. That’s why I got a pair and used my own ears to judge them, and I really like them.
And yes, they can get shouty if you listen at a super high volume. A lot of headphones do the exact same thing. I don’t listen at a high volume (to save my hearing), so maybe that’a why they sound good to me. I also only listen at a quiet home. If I was trying to use them on public transit or out and about where there is loud environmental noise, I’d feel the need to turn them up louder. So that may be what’s going on with some people’s impressions as well.
Either way, it’s no big deal if someone doesn’t like the sound tuning. We are certainly lucky enough to have so many earphone choices available nowadays. So if someone doesn’t like the SSR, it’s fairly easy to find an earphone they do like