Rapid time control

Am I the only one who finds it odd that on the front page of lichess "classical" time control is 15+15? And "rapid" is 10+0? It's just that I got used to watching the 2018 World Championship where rapid was 15+10 (and blitz was 3+2). I feel like rapid 15+10 is just right, whereas 15+15 is a bit odd. Too many extra seconds I feel. Thought classical would be more like 20+0? "Real" classical would perhaps be a lot longer, so I understand shorter is better for most web play.

Anyway, I know I can create custom games with whatever time control I wish, but just thought I'd mention this as I do wish for a 15+10 button on the front page.

FIDE Laws of Chess:
"A.1
A ‘Rapid chess’ game is one where either all the moves must be completed in a fixed time of more than 10 minutes but less than 60 minutes for each player; or the time allotted plus 60 times any increment is of more than 10 minutes but less than 60 minutes for each player."

That is the FIDE definition, on lichess a game is considered rapid if the base time plus 40 increments is at least 8 minutes but less then 25 minutes. Thus, a large portion of the games played as classical on lichess count as rapid on FIDE, and some games that are rapid on lichess are too fast for the FIDE definition.
As for the buttons on the home page, those appear to be very popular time controls, so they were chosen.