I struggle to see this ending well.
The Glazers won't quit over one game so this sort of intervention would have to be a sustained pattern.
The best-case scenario under such a prolonged battle of attrition is the Glazers gone but Man Utd set back by several years.
a. The club would lose points from repeated breaches of whatever codes govern these sorts of matters, which might mean missing out on Europe.
b. This would lead to additional loss of revenue in addition to covid hardship, and no good players will be joining. A few of the current good ones will leave.
c. Man Utd will plunge back into mid-table obscurity. The Glazers may or may not decide to divest. If successful, the Glazers will be forced to leave some way...but they won't go empty-handed. They would take as much from the club as they could on their way out, leaving a paucity of funds.
d. The new owners would either be similarly wealthy capitalists with dubious intentions or would attempt to recover organically or rely on debt to finance recovery.
At best, the club ends up in mid-table obscurity for a few years and recovers eventually. By this time, however, the financial power of Man Utd 's brand could have waned considerably,a nd the behemoth is no more.