California has term limits (up to 12 years regardless of being in the assembly or senate) and this law still was passed so I don't think you are really selling term limits...
Term limits do prevent situations like the supreme court, where any institutional knowledge and length of terms can be weaponized for political gain.
Overall, if the objective was to have a non-identifying age flag in operating systems, this isn't the end of the world (though I would have preferred enabling other things I've mentioned here in the past like opening up OSes). If there were younger people in the legislature that tried to understand this better than octogenarians, I think term limits are working fine.
Hopefully parents can use the parental control tools built around this non-identifying flag for some good.