ah, yes. and that is the free market working. and it is indeed a good thing. Congratulations.
There have been a number of employees who have shifted coverage to their spouse since that is how most employees are able to drop their employers insurance. Some plans require that if your spouse can get coverage from their employer and choose to get it from your plan, there is an extra charge. that is also the free market working.
If someone can make the math work, by all means do so.
And it still says that whatever costs you shift off of DL, the more you will improve their profits. If you stand, theoretically, to get more profit sharing from your employment than your spouse's or your insurance costs are less as a single from another plan, then there is an incentive to shift costs to them and away from where the free market will reward you with profit sharing for reducing costs and increasing their revenues.
I'm sure you have made a wise choice and I hope you are healthy regardless.