NWHL is much tighter than practically all NFL stadiums and its sightlines are more conducive to viewing our football. No NFL stadium has a large Kop-like end stand either. It's corporate offer is literally several levels above BMD, with whole dedicated elevated tiers offering more varied and exclusive viewing angle options. Generating far more income. Its construction costs were less than ours, although project costs may be similar.
At the same time BMD's relative simplicity may be more unifying in terms of whole-stadium atmosphere etc. Sometimes less is more. A bit like comparing say 1960's Goodison to 1960's Anfield. Structurally, two-tiered Goodison was head and shoulders over the single-tiered austerity of Anfield on almost every measure. However, Anfield was a simple tight, enclosed echo-chamber, that could easily generate a good atmosphere with less than 40,000 inside. Goodison's high and clipped-back roof-lines and low terraces usually needed bigger attendances, but as a result of standing on all sides and a greater capacity, was a real bearpit when the right occasion or provocation arrived. BMD is more of a basic bowl than NWHL or indeed Goodison is. In many ways, Meis' design for Roma was probably more reflective of GP, but with better proportions and acoustics.