Yeah and Fenway only seats around 33k itself. It's not really all that small.
The thing that I don't get is that it appears to be an open-air stadium that's going to be sitting in Las Vegas and playing ballgames in the middle of the summer. That's a terrible combination, even if they start games at like midnight and they won't be starting games at midnight. Chase Field in Phoenix might look ugly compared to this but that retractable roof is used a lot... according to this page:
https://www.nowhitting.com/index.php...-facts-figures
...the criteria they use is "temperature below 100 at game time with the sun setting" for keeping the roof open. That essentially means the roof stays closed for all of July and August. There are stretches during that time where the temperature never drops below 100 even in the middle of the night.
Vegas is cooler than Phoenix but only slightly. I think I've heard people insist that the large open looking expanse is actually a giant window, which... ask people who went to see games in the Astrodome in the first year it was there to watch games how glass roofs worked out. The glare refracted through a window is actually worse than direct sunlight and I suspect it would still do crazy things to the AC in a place like that. Also that would be an awful lot of glass, like I'm no engineer but would that be structurally sound?