as I am in the process of looking to publish my own app to the Google Play store, I can tell you this is no easy road. You need (understandably) to jump through a whole lotta loops to get this done. In the end, packaging a (HTML)-app into an apk might not be the hardest part of this process.
You need to be validated by google with a developer account, etc etc. Then the app needs to go though a review proces, at which point Google has the right to not accept the app. (Makes sence, but stilll.)
Integrating this whole process in an other webapp (what wick is, after all) seems like a very tall order, of not flat out impossible.
And all this is not even talking about Apple… they are way worse - not to say draconian…
I would say that the efforts of the dev’s will be better spend on other, more mundaine things…