Its a good idea but in some EXTREME cases would cause a huge imbalance
reason why this would happen is
- Lets say someone is "Boosting" a friend or being paid to ( we know some people do this ) and this person somehow manages to get an unrealistic # of kills for the average bronze skill level ( Lets say 15 before 20 mins ) this person would have atleast 2 - 3 items done while the normal person would have one and be working on the next ( 15 before 20 is possible ) by 30 mins if hes going at the same rate as before he'd have 4 - 5 items due to the fact hes fed and will prob be facerolling the enemy team at that point
Now this person has 1 item to go while most would have 3 or less to go
Now could you imagine how unfair an advantage it would be if allies got that fed players gold ?
If you could find a way to balance that problem out i'd be fine with the idea
but as I see that to be extremely unlikely its pretty much a guaranteed no at this point from me ( and potentially others )