1500m team might be easier to make for the USA, but yeah I think harder to medal. Historically yes the 1500m has been easier for people to punch above their weight but since 2019 times have changed.
There have only been four medalists in the last 4 years of the 1500m: Sifan Hassan, Gudaf Tseguy, Laura Muir, and Faith Kipyegon.
Bronze medal times:
2019 - 3:54.38 (Tseguy)
2021 - 3:55.86 (Hassan)
2022 - 3:55.28 (Muir)
If Andrews ran her PR in 2019 or 2021 she only would have finished 9th and 7th respectively. To medal in the 1500 she needs to be able to pull out a near 5s PR in her third 1500m in 3 days (bearing in mind as well it took 4:01 in Tokyo just to make the final).
If it isn't an all out time trial, those big three all have 1:57 or better 800 speed plus people like Welteji and Hailu who are 3:56+1:57 runners. Andrews' 800 speed isn't on that level. Those two plus Meshesha are both young as well and I'd be surprised if at least one of them wasn't pushing Muir for her spot this year as Muir gets older.
In the 5000m though, yes Norris might be out of luck in a time trial but it "only" took a 14:47 to medal in Eugene and 14:38 in Tokyo. If Norris can be in 14:30 shape by August, and if the race goes out slow, having sub 4 1500m speed to work with in a fast finish could give you a bit more of a fighting chance beyond basically hoping one of the big 3 falls off a cliff.
There has been more turnover in 5000m medalists in the last 4 years with Tseguy, Chebet, Seyaum, Kipkemboi, Klosterhalfen, Obiri, and Hassan all sharing the podium.