I can honestly say that, at a wedding, I am never excited for the cake. It usually looks amazing and tastes like industrial lubricants.
Because weddings are complicated, I'm pretty sure I never got a slice of that cake.
American cake is in general very good - I'm not sure where you're comparing it to - it's the cupcakes that are bad.
Which is like edible sculpting clay. It's technically edible but tastes like garbage. Buttercream makes a delicious cake but it is very difficult to mold some of the decorations people are requiring.
I wanted a fun "Batman" cake like this for my son's birthday party.
https://www.cta.ae/163-large_default/funny-block-batman-cake...
The bakery wants almost $600 for this cake. I think that is part of the reason we are seeing a "fake cake" trend.