Prospecting for groundwater occurs in several phases, starting with selection and preparation of the site, boring the actual hole (including core sample retrieval) and installing well piping, then finally capping the well so it can be used to draw water.
Each phase of this project would require its own EVA, and it would all be immensely more complex than what is briefly shown in these simple storyboards.
Since I am by no means an expert regarding well drilling or Martian geology, I would defer to specialized NASA scientists for fully developing this rough concept to include further relevant details.
These drilling tasks involve moderate yet sustained physical labor and cognitive loads, so plenty of interesting and useful biometrics can be gathered about humans doing real blue-collar work in Martian conditions.
The drilling procedure can easily be accomplished by just a few astronauts, using simple machinery, at low cost. During the process, core samples can be collected to advance our scientific knowledge. Additionally, unexpected deposits of valuable natural resources may be discovered besides water.
The Deep Well Boring Apparatus can be reused many times, to drill many wells.
