That's an entirely valid concern. It's already true for today's "nutrition facts" labels, though, and the solution for those is that tiny packages say "not labeled for individual sale".
However, I find it difficult to believe that an easily-read, sufficiently-comprehensive table would fit on small packages. Marking even more things as "not labeled for individual sale" just because a new table that aims to be helpful [0] won't fit on their packaging seems to me to be a generally bad thing.
[0] And also aims to replace existing allergenic ingredient class warnings that do fit on the current packaging...
However, I find it difficult to believe that an easily-read, sufficiently-comprehensive table would fit on small packages. Marking even more things as "not labeled for individual sale" just because a new table that aims to be helpful [0] won't fit on their packaging seems to me to be a generally bad thing.
[0] And also aims to replace existing allergenic ingredient class warnings that do fit on the current packaging...