I don't expect 10 minutes every day, which is why I quantified it 'more reasonably' as about 2 matches a week.
If it's a rule that you are banned from the next event if you don't play 30 matches, that's really sending a message "If you think you might not play 30 matches, we don't want you to play at all."
This just isn't the case. We encourage anyone to play BL matches, of course we hope they all get to 30 matches, but no one is upset at all the people that didn't make it, and most people who don't make it aren't upset about getting banned (most of them disappear well before the end of the season). You are really over thinking this... Yeah 75% didn't make it, and some of them did play 20 games (it may be important to note not all people under 30 got banned, when the season was extended they let more people join and those new comers only had to complete 10 matches before the season ended).
We want as many people to play in BL as possible, but if people decide it is too big a commitment, then they don't get to try again for a while... And because the community is constantly expanding there is rarely a shortage of new people to replace the ones who get banned, it's part of the ebb and flow of the player base.
And to point it out again, if you have NO intent of winning the league, then just hang in chat and ask for pvp1 duels or BL practice matches. You can even keep your own stats to compare yourself with the actual league.
So the event is not "credible" unless it bans people who don't want to spend a ton of time on it?
And yes, for an event to be credible it needs some sort of prize for those who succeed greatly at it and some punishment for those who disregard the event (by abandoning it before it ends) or its rules. We have pvp parasite system for other events, and the league has its own banlist. Rules are inherently arbitrary, but having some and enforcing them is what separates league play from just playing.
Apologies for the many edits, it is hard to post detailed replies in the basic mobile version of the site.