Is it rude or unacceptable to only serve a main and wedding cake?

After quite a few issues with our first venue, we found a second venue that we love. Unfortunately they aren't able to cater to the late ceremony schedule we originally wanted. They have offered the solution of serving extra canapes before the ceremony but skipping the entree entirely so that the dining finishes within their time frame. Our guests will still get a choice of 2 mains and wedding cake for dessert with a fruit platter and cheese, but I don't know if it is rude not to have an entree. It feels weird to me to not serve an entree. Thank you.