I think we (as in Switzerland) are preparing for a future in which there is not much snow melt/precipitations to fuel hydro production year round.

In fact, if the AMOC weakens/stops then there will be a drastic drop in precipitation across Europe and funnily enough maybe the temperature drop so much that the little snow there will be won't melt in big enough quantities.

Of course this is just a ban lift, meaning that there are no concrete plans to build one or more, but if there is a need to move "fast" (nuclear is not, I know) at least there is one less hurdle. I sincerily hope we invest in other technologies, especially now that Sodium batteries seem on their way to solve grid level storage, but I don't necessarily see this as a bad move per se.