Most stadium architects? Dan Meis said exactly the same about his Roma design, which had 2 tier end stands with larger upper tiers and overlaps.... so the main determining factors are numbers of rows within reflective angle of those roof surfaces..... which is why some of the world's noisiest stadia are multi-tier.
However, I've said that a simple bowl effect can add unity and atmosphere repeatedly. However extrapolating that on 4 sides creates a simple bowl that won't necessarily satisfy other requirements that well. A larger St Marys etc. As I also said.... perhaps less is more and a basic bowl will suffice.
Moving the pitch 2-3 metres further away to lower the rake for the same c-value won't reduce the atmosphere at all. It can however bring the back rows of the upper several metres closer, to give them better views and the stadium greater intimacy. Or enable more rows in a larger upper tier directly beneath the roof to enhance the atmosphere as at say the Millenium. That's how sightline geometry works and that's what happens at most major large stadia.
I've mentioned the Gwladys Street, because the South stand is only 2 rows more than it, (and no-one would say the street end is a large home end). I also said that the extensions into the corner lifted its capacity.... but it's hardly the super-sized home end that was in the original proposals, and for comparison is approx 5k less than Spurs' South stand. Less than the Walton Hall Park stadium. 16 rows less than Anfield's Kop but with less roof capture...... I think that had far more to do with the architect's sketched concept than any acoustic engineers input.
I'm not sure if it's really world class tbh. The exterior yes.... the interior is almost as simple as it can be.
Ferraris are not particularly well known for their practicalityy or capacity, so you might have something there.
