Take a look at figure 3 again. About 3 weeks ago, PFE was claiming 3-4 fold reduction against SA when this 97 fold "striking" data came out that seemed to contradict that.
Authors say:
" Similarly, neutralizing antibody responses were also significantly decreased for the Brazilian/Japanese P.1 strain (15.1-fold, p < 0.0001), which harbors three mutations in RBD (K417T, E484K, and N501Y) and has also been found in cases of re-infection. Strikingly, neutralization of all three South African B.1.351 strains was substantially decreased (75.4-fold for v1, 97.2-fold for v2, and 93.6-fold for v3, p < 0.0001 for all three). These strains contain the same three RBD mutations as P.1 except for an asparagine versus threonine substitution at K417 (K417N) (Figure 3C and S2) and several additional mutations in non-RBD regions. Surprisingly, we found that the neutralization of B.1.351 v2 and v3 strains was worse than that of more distantly related coronaviruses SARS-CoV (84.1-fold decrease) and WIV1-CoV (72.3-fold decrease), suggesting that a relatively small number of mutations can medicate potent escape from vaccine-induced neutralizing antibody responses..."