The only evidence being presented to support it looking identical, as you say, is the coaster existing on the left side and a circular planter.
The coaster looks like
that from nearly every angle & location you can see it from. But additionally the real coaster in that spot by the wooden parade gate has
two layers of track, and the concept art only shows one.
The round planter is not the same as the real life one shown in the boardwalk pizza and pasta. In fact the shape of the planter isn't even the same.
So to me (and apparently to Hey Brickey), that concept art is not showing us the parade gate location but rather a completely different place behind the coaster.
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