For a year now I've been hearing the same argument repeated over and over: BTC is the real Bitcoin and BCH isn't, because previous/historical versions of Bitcoin Core sync to the BTC chain.
If BTC implements a hardfork to fix their inflation/crashbug, then the previous versions will no longer sync to the BTC chain, and by its own argument, BTC will no longer be "Bitcoin."
They must address with soft-fork, or lose any claim to being "the real Bitcoin." Also, we should point out that for years we have been told "the code is the spec."