A candidate's social policies may be more important to some people than their fiscal policies. So an analysis of their social policies would be more useful to those readers than an analysis of their fiscal policies.
You can make an expert analysis of a candidate's previous stances and track record on those subjects. Politicians will routinely lie about their previous stances, so that seems like a useful analysis to me.
On abortion, there's now a national patchwork of policy. You could write a damned book analyzing their implementation and consequences.
An article listing analysis like this, with appropriate quotations and explanations would be great. Does WaPo publish stuff like that, consistently, over the length of the campaign? Or would it rather do another "17 reasons why Trump is exactly like Hitler" level analysis?
That’s why WaPo has consistently endorsed the same party—even when that party’s policies have changed dramatically over time. WaPo would endorse Harris regardless of her policies.