The framing of the ESL women's only league is that the only things stopping women from competing in T1 Esports is discrimination, but it's hard to justify that.
There has been nothing stopping a woman from getting high challenger with a gender neutral ID for 10 years of solo q.
You can make arguments that discrimination applies in CSGO/Valo due to voice chat, but none of that applies to league.
Solo queue can be an objective metric of skill free from discrimination, but in 10+ years, there hasn't been any women who could compete in even T3 leagues.