Since nobody really touched on it, even if your wording is shit then I believe their problem is still in the claim the seal can replicate bijuu chakra, regardless of whether it requires you having had and mastered a beast first.
While yes, one can be a pseudo jinchuuriki akin to kin/ginkaku, this actually requires a notable amount of the actual bijuus chakra. Without it its no cloaks, no nothing, there is no sentience either and one could even argue after you've used it up then its simply gone and that's that. Telepathy needless to say would not work either, you require the actual beast for that.
Converting chakra to remind bijuu chakra, sure I guess, not that I see the point of having a shoddy mockery of the real thing since it won't benefit you in any way. Converting chakra into actual bijuu chakra however, that'd be plain impossible since the source is unique, yin-yang'd from ten-tails. Humans simply do not have, for lack of a better word, the building blocks for it, needless to say no seal could accomplish that feat either no matter how much of a fuuinjutsu 'god' one claims to be.