Personally, I can detect flavours in espresso if they are there to detect. When I buy from roasters I buy from those who have a track record of delivering the tasting notes on the bag - this is going to be a matter of subjectivity, a roaster will either taste the same things as you or they won’t. Tasting notes can come from either the roasted coffee brewed as a filter and espresso, or from the green coffee roasted and cupped, or possibly just from the importer’s tasting notes. If it’s the latter two, you may not find the coffee tastes the same as roasted by your roaster whatever brew method and equipment you use.
I don’t experience a lack of clarity using conicals vs flats. If you want greater clarity then dial in for a greater yield. That said I usually have a 1:2.5, but really will adjust for the best flavour balance. I have no interest in ‘accentuating acidity’ by pulling shorter and shorter shots - a trend I imagine was started by some barista going for the world championship that everybody wanted to copy - and I’m not against going as high as 1:5 if that’s what tastes the best.
I remember taking part in an LSOL on the old forum, and a bunch of the people using EKs, Mythos’, Royals and Flat monoliths were going on about flavour notes that turned out to not even exist on the bag, while I was nailing 3 or 4 out of 5 with a Pharos (or maybe it was a Lido E at the time) pulling to a 1:3, and at a 1:3 it’s still plenty concentrated to enjoy for the body you get in espresso. If I were determined to pull everything as a 1:2 for some reason, I might have a different opinion, but it would be a stretch to complain about the grinder if I’m not willing to adjust parameters to get the best shots.