Why do I get removed from a promotional series for dodging?

What's the point of that? What's the logic behind it? Why am I penalized even more severely than usual just because I'm in a promotional series?

It doesn't make sense. If I get into a lobby where people are telling each other to "kill yourself" and calling each other "N***ers," and banning each other's champions, and picking Tahm Kench jungle when the top laner wanted to play Tahm Kench - you expect me to just sit through that? You expect me to go into that game that I'm gonna lose anyway because I'm paired with a bunch of toxic 12 year olds?

Nah. I'm good. I'm not gonna waste my time with that crap.

I could understand if you gave a loss. That'd be fine. I still don't understand why, but at least I can still do my series.

I personally think it should be just like dodging any other game - you get a wait timer, and that's it.

But no... even if you haven't played a single game of your series, if you dodge --- you're out.

Why? What's the big idea?

There's literally no reason for it.

So instead, I'm faced with two equally horrible options - sit through a game where people are already flaming and hate speech-ing and trolling each other before champion select is even over, or get tossed out of my series for dodging.

Gee thanks.