It's certainly one of the worst parts, this beginning to create accounts, it kind of forces the person who is inviting someone else to join the hive, to literally take their hand to cross the street lol
Creating account should be a lot more seamless imo and I mean Hiveonboard is a great way actually but the flowchar could be made simple.
Of course, I don't remember if I've ever used the inleo frontend to create a new account, but I know it's possible to make a new account there with just X and maybe gmail, I think that's it, it has to be done like this and then the keys arrive by email.