Chasing losses is never been a good behavior as a gambler because this would really trigger out those emotions which would lead to more mistakes.
Panjul is a veteran gambler with lots of experience, so I won't question his emotional control and stuff.
However, even veteran gamblers may not used to deal with "cold period" of slots games. It's a quite long period of slots rekt that demotivates player from playing the game (retired) or make them not patient enough to wait for the "hot period" thus they burn more money than their gambling budget. For me, I just play with my budget as usual. For sure, it's just "for fun" budget.