You confound benefits and errors into one.. To be able to join full rooms is a benefit, to be able to attend VIP only events with way better prizes is a benefit, to get 20% exp bonus (which makes it easier to reach lvl 99 and get more coins) is a benefit, to have an exclusive vip shop is a benefit, to have a 1:2 ratio on event points to coins IS A BENEFIT, to limit non vip ones from converting with a lower conversion rate only if they have even number of points is an error, not a "VIP benefit".
And nope, I won't "realize" it, as it shouldn't be a limitation. It ain't logical, just an error on the dev size. The lower ratio itself is something that differs VIPs from "Regular" players, and I find it to be ok.
And no, my suggestion ain't friendly, it is just right.