Even when reincarnation after millions of years is an established possibility in the lore by chapter 200.
Like any review this is mostly personal taste, but I'm not a huge fan of how informed a few of the "old cultivators" are.
It detracts a bit from the experience when the MC does something completely outstanding and you've got these old f*ckers just nodding their head "as expected".
I will say that it's a decent enough excuse as to why the MC doesn't get much support, since it's fairly typical for a MC in these novels to basically have to depend on himself, no matter how outstanding he is.
It's always bothered me how an MC shows extraordinary talent, and the higher ups just throw him a bundle of string, some paper clips, and expect him to mcguyver his way through cultivation while putting their full support into absolutely scummy, useless "core disciples" or some such, only for them to get owned by the MC later.