The Yang Family couldn't afford to provoke the Yan Family, so they had no choice but to obey. Besides, Yang Tao wouldn't stir up trouble with Yan Ruyu for Mo Yan's sake, so it didn't matter what the wedding was like.
Mo Yan made a fuss several times, and each time she was scolded by the Yang Family for being vain and narrow-minded. She not only failed to gain any advantages but instead left a bad impression on her future in-laws.
Later on, Mo Yan realized this, and in order to have a better life later on, she had to swallow her pride and stop talking about the wedding.
Not talking about it didn't mean she wasn't angry or didn't care.
Now that only Mo Ran was by her side, of course she needed to vent her frustrations thoroughly.
Mo Ran could understand Yan Ruyu's actions from a logical standpoint. Yang Tao getting remarried immediately after a divorce was like slapping her in the face.
If the wedding was too extravagant, it would be like completely disregarding her.