As discussed there, the concrete productivity caused some compatibility issues. It was fixed there, but I think it is still worth mentioning here as well.
https://mods.factorio.com/mod/concrete-productivity/discussion/6a4c0c8867dceab0c4728cfe
So, in short, the concrete productivity had the same internal name, and I think for a planet mod, it might be beneficial to either create unique prototypes (with a prefix) or check whether that name is already taken.
It might be a non-issue for this specific case, but there could potentially be other issues further down the line.

i dont see the problem, it happens rarely that planet mods add the same productivity additions and usually libraries like planetslib or the modders themselves are aware of this
its on the player for installing a mod specifically adding something that already exists, like you adding a mod specifically for concrete productivity while playing with mods that already are going to add that

adding prefixes can also cause issues so wether they're added or not problems will arise regardless