Photo from Alterra's Twitter update:
View attachment 286743
I imagine costs and funding became a challenge, as it usually does, and resulted in a teeny bit of value engineering. And COVID certainly hasn't helped the hotel business. It's incredible that they've pulled this off and are even talking about opening soon in 2021. Having said that, I think even if the top is painted a darker colour, perhaps a black matching the window mullions, it can disappear pretty nicely.