Hard not to "blame the referee" when the supreme judge-kings in charge of the electronic voting system are openly partisan to say the least.
In fact, the issue of fair elections in Brazil has become background noise because of these so called "referees". They have usurped so much power elections are just theater at this point. It doesn't matter who wins because in the end it's the judge-kings who rule the country. There's no point in even discussing the matter until their fall.
Every election has "bunch of weird stuff happening" because every election has losers that don't like to lose, either with paper or e-vote.
To use a soccer analogy, it is like the losing team that blames the referee.
The ones complaining about "bunch of weird stuff happening" are just playing Trump.