[Idea]: "Band-Aid" for EXP Issue

So one complaint I constantly see pop up here on the boards is that "people are not getting anything for winning". After the removal of IP & being replaced with EXP, progression feels bad. As a result, rewards such as chests & Blue Essence take a very long time to obtain. However, there might be a small change that could alleviate some of that frustration (Won't fix it entirely however, hence the term "Band-Aid"). Why don't they introduce say a 20% Bonus EXP for partnering up with friends? Overwatch does this & it's actually a key difference between the two games Level Progression. Sure Solo players would get the short end of the stick & that will have it's own problems, but it would incentivize people to partner up so that they could get those rewards much more faster. Riot has tried doing stuff like this in the past with the Pre-Made missions during Worlds & the Star Guardian Event.