For those not understanding the context of the parent's comment, this HN post originally linked to @damageboy's https://twitter.com/damageboy/status/1194751035136450560 tweet showing a 20% performance hit, but was later changed by mods to link to the phoronix.com article.
I'm assuming it will get resolved, as the errata suggests by shoving lots of 0x2c segment overrides to re-align those jumps.
The price won't be 0, but will definitely less than the very extreme 20% edge case I stumbled upon.
I'm more "worried" or annoyed by older binaries that will never get updated. But hey... (；⌣̀_⌣́)