Commercial NaOH isn't 100% pure, but almost all
soap recipe calculators assume it is. This means there is a "hidden" superfat built into recipes produced by these calcs. The hidden superfat is the difference in the real purity and the assumed 100% purity.
Your recipe with the missing 7% safflower is right at -1% superfat, assuming 100% NaOH purity. Allowing a reasonable guess for the hidden superfat -- which can typically be 3% to 8% for fresh NaOH -- then your soap still has a slight to moderate positive superfat even with the missing safflower.
I normally use 2-3% superfat AND I correct for the NaOH purity. My soap turns out fine.
If you used a calc that assumes 100% NaOH purity (every online calc I've looked at is like this), your soap should be okay as it is. No need to rebatch or jump through other hoops to "fix" it.
And even if your NaOH happens to truly be 100% pure and your soap really is slightly lye heavy at -1% lye excess, the soap will still be fine after curing. A slight lye excess like this can and does dissipate over time. So again, there's no need to jump through hoops to fix this soap.