You are very right, but we now have proof that the EFF is going nowhere slowly, the MK looks scary because it just started and jumped to third position but they also have a ceiling.
The bottom line in this election is still the fact that the ANC is failing to get their supporters to go out and vote, they probably think they are punishing it but all they do is to open the door wide for the MK. Their disgruntled voters are still there, they did note vote for the DA, they did not vote for the EFF, they abstained.
My feeling is that the majority of the country is sober enough to see Zuma for what he is, so he is still by and large, MK is stil by and large a KZN party as the results show, so I don't think people will fall for whatever he is selling, but not voting is equivalent to evil triumphing when good men do nothing.