The title says it all.
It would, somewhat, help to mitigate a bit the huge gap that collections make. It is ridiculous the effect that, for example, ancient transfomation collections of the cats, sheep and foxes give without a real chance to work for them which is not blocked behind a ridiculous wall of money or RNG.
I would argue to keep nezekan and zikel obtainable only through the f2p insignias farming, but as they already introduced a huge p2w method of obtaining them shortly after they were introduced, the fact that they cannot be obtained via fusing is not relevant anymore, so might as well include them in the package.