> We can't use satellites to measure anything other than surface temperature of the ocean
...and atmospheric temperature, and surface temperature of the land, and the solar energy arriving on Earth, and the energy being radiated away from Earth. There are plenty of things we can measure to show that there is warming beside just deep ocean temperature. We probably need deep ocean temperature measurements to predict accurately how the warming effects will be distributed, but we don't need it to show the warming is happening.
I don't know what you are going on with about the oceanic thermocline because all you've said is that there is some problem with some data related to some phenomenon involving it and that we don't have enough data to understand the oceanic thermocline.
You seem to think this thermocline problem is inconsistent with global warming. Let's say you are right. So what? You noted that we don't have good data or models for the thermocline.
We do have good data and models on dozens of things that do indicate warming. Generally in science when you have a lot of things that have good data and good models and support a theory, and some thing without good data or a good model that doesn't fit the theory, you wait until you get good data on the later before considering throwing out the theory.