Is this a viable strategy for avoiding the pro-rata rule for backdoor Roth while maintaining the superior investment options in my non-Roth IRA?

Assume that my 401(k) supports both reverse rollover from IRA and in-service rollover to an IRA. I am doing a backdoor Roth, and want to avoid the pro-rata rule. The general way to do this is to reverse rollover the pre-tax IRA contributions to the 401(k) so that the pre-tax IRA balance is $0 on December 31. All good. However, my IRA investment options are significantly superior to my 401(k) plan, so I'd rather have the money in the IRA long term. Is it a (legal) viable strategy to reverse rollover the IRA to 401(k) late December so the balance is $0 on the 31st, and then in-service rollover the 401(k) back to the IRA on Jan 1, or is there some gotcha that I didn't find here?