ODIs bilaterals might look boring to many but ODI wc is goated and still has lot of value among fans, some might even argue that it's significance is more than T-20 wc and rightly so.
This is exactly why they should limit the ODI format to the World Cup and nothing else leaving more breathing room for players to focus on the other formats. 3 formats together are pushing more and more players to retire early from one or more formats these days.
The ICC needs to prioritize all 3 formats in a better manner if they wish to stop this early international retirement trend soon.