Could of waited for another 8 weeks that's all
Plenty of ovals they could use
Trinity Grammar etc etc
if you wait another 8 weeks, then you finish the project 8 weeks later, at least, which means the ground is not ready for pre season.
is that what you want? to be able to whinge about that?
also, as i alluded to previously, the timing for planting/laying grass is critical. spring is the growing season, you want your grass established before the heat of summer sets in, not trying to establish during that heat.
it wouldn't matter what they did here, you would complain.