I think any of the hay growers in my end of the world could design a grass playing field for Sofi, with overhead sprinklers, gro-lights, and adequate drainage.
It'd be an expensive install - and let's say, at the outside, about half a million per game to operate and maintain.
That's a lot of dough - especially to cover the face-saving optics of an original error. But when weighed against cumulative lower leg injuries to key players (think Kupp's salary for half a year, f'rinstance) over the season from playing on plastic turf, it quickly pan out. That's before the revenues that would come ownership's way from hosting international soccer.