Per https://en.bitcoin.it/wiki/Covenants_support, there are still some no ¹ and a handful of weak ². I think that with a functional demo on inquisition (or a similar signet), the notable no can be addressed and, if the weak opinions are correct that there is not enough benefit to be had on its own, this can also be used to show a combination.

Instead of building an activation client, build a signet.