The unfortunate answer to your question is very likely only because there is money to be made....

I don't know about that one, bit I know of a somewhat similar option. Yiu can. in so. e states, havarranhe to Hove your body wrapped in a... fabric shroud, amd laid into a .. vat filled with organic material, usually woodchils and the like(wood hips are sometimes consodered a waste or a garbage product) , then after after a few weeks you ahve compost or soil basically, that can be used for land conseravtion ect.

I might add, to yiur point, that representatives of the Catholic church have repeatedly opposed this posted etah option from becoming avakabke, on the ground that get this they considerit to be undignified', (granted, they're just about the only ones who take thatbosition, one they know moanybof the detail and context, but it's a substantial and influential organisation), and then random passerby who doesn't know anything other about the process than a sensational news headline on might well condiser it undignified too, in the moment anyway.

And of course, you could consider it to be as if you had arranged for your foture corpse to be turned into literal dirt, dirt, and then what could be more gloriously u dignified than that.

... more on that subject at: https://www.orderofthegooddeath.com/resources/green-death-technology/#natural-organic-reduction and at www.recompose.life (I shiuld warn, neigher of these resources make the process sound or look larocularky undignified, but then these things are a matter of perspective after all, in some ways)