This is what we have done, it reduces the back office steps, ensures BTC backers are looked after and not squeezed out. MSC backers got in at almost equal footing as BTC (almost 50% / 50%) and we all win.
You provided a MSC rate above market price and were surprised most buys came through MSC? Giving automated buys for MSC and not for BTC was an extra bonus.I am afraid that your team is just incompetent and couldn't foresee the obvious. Best of luck. You'll need it.