In the email Tapas sent they wrote
I think Tapas wants to give a chance to comics that are not specifically BL or GL to have their own space without it being taken over by the many, many, many BL stories.
@Kaylim explained it very well in my opinion in the other thread
I think it's good to have both BL, GL and LGBTQ+ genres because they'll be most likely be different kind of stories and people who want to read LGBTQ+ stories don't necessarily want your typical yaoi comic
Link to the thread I mentioned