Apple does not do the GIS data for maps. That comes from 3rd party vendors like Tom Tom. I have read it takes some time to update map data. The only thing you can do is report it.
Not to belittle your complaint, but on my end it is Apple that is clearly better. When looking at my house in Google, the satellite photo is more than 4 years old, and the Apple one is much newer. I can tell because of the condition of my home and the neighbor's. They had an above ground pool which was removed 4 years ago and it shows on the Google Map. I had remodeling and roof work done to my home that started 3 years ago and Apple's satellite view showed this work done, which took over a year to complete. I live in the middle of a block in a rural town. Both Apple and Google split the block into 100 parts and put my home close to the beginning of the block instead of where it actually sits. I've reported it to both Google and Apple and no one has changed. Just one of those things. But, keep your chin up, it will get corrected eventually.