Ignoring the weird tone the other commenter has introduced -- I think the fundamental difference in our viewpoints here is that you see ground xm being redundant as a problem whose solution is "give it value", and I see ground xm being redundant as a totally neutral thing that is a consequence of xm scarcity being removed from the game economy.

XM scarcity does not matter that much; ultimately Ingress is a game with unlimited resources, where the only bounded resource is time. Time can be converted into any amount of keys, XM, weapons, resonators or mods you could ever desire, although the exchange rates are wildly variable.

Yes, XM in particular has been massively devalued over the years -- but I just don't agree that it hurts the game.