Previously male-only Hearthstone competition now open to all genders
polygon.com
polygon.com
What makes that a 'possible conflict'?
Fixing it by allowing women to go forward was what made the most sense.
So even if the local organizers in Finland would have rebelled (which they did not), and allowed women to participate in the national event (which would have been against the IeSF rules), they probably could not have sent the national champion – in case she was female – to the international championship games.
So the local organizers decided to follow the IeSF rules and not allow female participants. But something like this stands out in Europe, so there was something of a media storm, and everything turned out nicely: IeSF decided to update their rules.
It's not like running the 100m or a marathon, where women aren't capable of competing, so there's no reason to keep them segregated.
Also - it's fascinating how fast changes happen nowadays. A bunch of people point out how stupid something is and it changes within days.
In the case of Hearthstone, the main tournaments are primarily men anyway. So having the women's league in addition to the mixed league will help women get involved in the activity. As the gender gap gets closer to 50-50, the need for the women's league decline and they could consider switching to a mixed only league.
"The IeSF Board addressed its reason for maintaining events for women, citing the importance of providing female gamers with ample opportunities to compete in e-Sports-currently a male-dominated industry, [..] Female gamers make up half of the world's gaming population, but only a small percentage of e-Sports competitors are women. The IeSF's female-only competitions aim to bring more diversity to competitive play by improving the representation of women at these events. Without efforts to improve representation, e-Sports can't achieve true gender equality."