Legends of Runeterra expedition problems

CAN WE PLEASE think about maybe making it where after your 15 random choices on Legends of Runeterra that you can ONE chance at hitting "Reroll" and then redoing the 15? I'm getting really tired of getting these decks where it's like "Oh, we gave you Yasuo on the first choice, and also you only got TWO OPTIONS for stun out of the next 14 choices, in total."

I feel like this system is a little broken and it really isn't reflecting the fact that it takes you grinding for at least 20 games to get a coin, and let's be honest, you won't be getting these coins once you finish grinding out your progress bar on each area...

I'm wasting way too many games because I can't pick anything correctly, and it isn't my fault. I have had times where I pick braum, and then I get TONS of give a damaged unit +3/+3 and omg, it's amazing. But I've also had times where, just like now, I took Yasuo on #1, with a stun with him... and in the next 14 pages, I literally only got one extra stun/recall option.

How?