The one thing they did to help keep the winning streak going for so long was to make very few rolls each day. Someone using auto-bet or a script would have made the same number of bets they did in 3 months in 1 day. The smaller the sample size the bigger the chance of variance occurring. That can obviously work against you as well.
Indeed. I haven't gone on long wagering streaks since last year but I definitely lost a lot more hitting the dreaded 20+ loss streak when playing millions of rolls on auto non-stop on several tabs... then I did playing a few thousand over days and weeks and months.
In fact, I recovered all of my past losses doing just that on one particular good run stretched over many months back when they were still doing 5/4/3 promos for Golden Tickets:)