The most relevant playerbase for PP is FiraXCOM, a decently made PP should reach the same crowd, so if that game could be successful on consoles, having plans for the same with PP makes sense.
Modding is such a broad term that any kind of “promise” for “modding support” is meaningless without details, especially as we all know how other “promises” of PP went through the iterations…
Considering PP is on MS Store, it will be probably some built-in mod-browser solution (AoE2DE modding comes to my mind first, it being on MS Store and having some modding capabilities), which needs more development resources (compared to just having the code be more “accessible for modders”), and I think we can both agree that the devs priority should be the base game for now, fixing what’s broken before going for the extras.
“Official” mod support is not needed for a great modding scene, unofficial help can go a long way and might be even more efficient for both parties, even if less marketable. That does mean having some discussion with devs, which is way rarer now than before (the epic shitshow didn’t help the relations at all), but it can work.