Incorrect Deferral and Matching Allocations

[mming]

Two participants in a six-life self-directed 401(K) plan have had the correct amounts deposited to their respective accounts and investment choices, but incorrectly allocated between their deferral and matching subaccounts. There's about $2,000 - $3,000 for each shown as deferrals that should have been allocated to the matching subaccount. The plan does not allow loans or hardship withdrawals and all the matching contributions are safe harbor and 100% vested. Between the hassles involved in getting the investment company to make the adjustments, the employer's reluctance to correct the problem due to his perception of a pr issue with the employees, and the calculations entailed in figuring out the exact transfer amounts and earnings adjustments, we sure are tempted to not fix this. What reasons should be given to the employer to have this fixed? As long as money from this point on goes in correctly, and all previous amounts are in the correct investments in the aggregate for each participant, should this even be an issue? All help is appreciated.