The only problems we have had with our 2014 car from new were:
1) A crack in a front wing where a change in the fixing of the headlamp nacelle had proven to be less than robust - fixed under warranty including the wing that had yet to show a problem. The factory has since changed the fixing back to something more robust.
2) Sagging rear springs. Since Morgan now use the same supplier as the after market people I went to for replacements, I cannot see that one recurring.
Quality has definitely improved over the years. Here in the UK, we have the advantage that we can return our cars to the factory for warranty work if needed.
From reading your posts, I would say that the advice you have been given is correct - try a few more cars and if they don’t “grab” you, then go elsewhere.
Something that we considered when buying our first Morgan in 2003 was the nature of the local club - it is very “Wife Friendly” - if your better half enjoys the social side of the club, then other issues may be reduced.