I think almost every WrestleMania in the last decade or so has had this problem. But since 2016, it's gotten worse. Most of the card isn't even finalized until March or so, and the big matches only get a few weeks of buildup.
When I was younger, it felt like at least two or three matches were locked in after the Royal Rumble. But now, like you said, they just decide they're going to do a match and make that match happen with the limited time they have. WrestleMania feuds used to feel like they were important, like there was actual time invested into them. Now, they're no different from any other show.
Imagine current WWE having the patience to build up a WrestleMania match over the course of a year, and make it highly anticipated so when it happens, people still want to see it.
The only match they've put real build into is Reigns vs Lesnar. Seeds have been planted for Becky and Bianca since SS. That's basically it. Everything else is being thrown together.
Facts.
