An unrated player playing in a lowest group is a normal thing. There is no conspiracy in here.
I would argue it would make much less sense if they were playing in a group with a higher rating brackets. Imaging them losing all their games there and their result affecting the winner of the group, and a runer-up complaining about the winner getting a "free" point, because their unrated opponent shouldn't have been in that group. This can as equally be considered unfair.
Anyway, as it was suggested above, draft an amendment to the regulations and propose it to FIDE via your national federation or directly.
I would argue it would make much less sense if they were playing in a group with a higher rating brackets. Imaging them losing all their games there and their result affecting the winner of the group, and a runer-up complaining about the winner getting a "free" point, because their unrated opponent shouldn't have been in that group. This can as equally be considered unfair.
Anyway, as it was suggested above, draft an amendment to the regulations and propose it to FIDE via your national federation or directly.