So essentially they really liked the team working on Magic and are paying millions to, in a sense, employ these people?
It's a bet that for every $1 the team spends they can create about $3 in value. Which at 5x revenue is to say, they can spend $12m and at the end of the day be cash flow neutral and have about $8m in ARR.
Throw in a liquidation preference on that $12m and what you actually have are golden handcuffs and high expectations but the work for this team all lays ahead of them not behind them.