The spawn would be nicer if it was built with resources collected properly in game and if objects from the previous map weren't placed so close.
While I kinda passively disagree with creative being able to be used for general building in a survival map there are times were it makes sense to use creative mode.
That would be if an Admin or a really trusted user were to use creative for the benefit
of every player. For example, making a decent looking spawn point.
Since really, spawn doesn't belong to one player who get's credit for it.
Also, the shops, they are to the benefit of anybody who is short on materials and would like to trade their surplus. The primary idea of the shops isn't for grandeur like most projects, it's to provide a stress free service for sellers and buys.
As for cut and pasting old projects near spawn point. Not only were those projects done 100% legit on the old map, with weeks of work collecting and placing materials... if any project was deemed worthy to be next to spawn it would be intricate ones such as that over any random cobble/wood hut.