Losses and XP/IP/CP

Lately I've hit a bit of a slump in solo queue. I'll go in and do well, with a team that isn't necessarily on point, and then when we eventually lose a long and well fought game the only reward I get is a reduced amount of IP, XP, and CP.

The biggest difference is in champ points, where an A on a loss can mean about 55 CP, while on a win it could be some hundreds for the same score, the same well played match, just with one lucky twist where in a final push we win instead of them.

Personally, I think good play is good play, and good play should be rewarded. Is this the same as the kindergarten type everyone wins rule? Certainly not, I would hate that, bad play should get a stunted reward, but at the same time, if you did well, why no get the XP for it.

So what is this difference in award is about, do you guys think it needs to be corrected, and why or why not?

Thanks, DrangedCapybara