It doesn't make much sense.

There are massive gaps in our current climate models because we have almost no data about subsurface ocean dynamics. Many of the assumptions about the oceanic environment in climate models were demonstrated to not match empirical measurement a few decades ago but we don't have enough oceanic data to come up with a coherent model for the observed dynamics. Without a plausible model for these dynamics, any predictions made from climate models have a high probability of being significantly incorrect.

These sensor networks were the first step toward collecting some data that would allow us to develop a plausible model for subsurface ocean dynamics. To be clear, we are probably still a couple decades out from this in any case but removing these sensor networks from operation definitely won't help. There are very few efforts to collect this data at scale, I believe this was one of the largest.

Most people don't realize how critical subsurface sensor networks are to building accurate climate models.