Did they do a call for presenters? I'm pretty sure it was only invited talks.

Some talks, like the music v4v ones, I'm genuinely looking forward to. But if your conference is a curated experience of invited talks, that's kinda sus.

I do like BTC Prague, but I have the same complaint with them. (At least main stage).

I could have just missed the CFP, I do wear glasses 😎

Not saying CFPs don't have their issues too, but invited talks only is the definition of gatekeeping.