On a chrono with subdials it´s the first thing I look at - do the subdials reset to 0? While nobody notices it from an arms length any friend You show the watch will immediately notice it at well. After 1 Year it will still bother. If You put it on m2m sale it "won´t fly". The only solution I have for this is putting it at another position without resetting - say at 30 secs.
The only Omega chrono I took the movement out is still in pieces - did not manage to get it back together fiddling with the Chronopushers.
3 tries for the TD to get it right on a $350 shipped watch or $100 discount, it´s faulty (nobody gives it). Otherwise refund, if its a nice TD I would ask for a non-chrono instead.
Simple fix: my non-chrono collection has grown
Some TD´s (see posts above) do care, others keep sending You qc of faulty watches, it´s their problem imo.