Seems like the expected behavior of an interglacial cycle to me.Back in reality, ocean heat content goes _up_ during a La Nina. We know this because the thermometers say so. The surface temps of one section of the Pacific are not a measure of total ocean heat content. Around the world, we measure down to 2000m depth using Argo floats, which have an accuracy of 0.002 degrees. Yes, that's not a typo.
No matter what the ENSO cycle state is, the oceans pretty much absorb the same amount of solar and backradiation energy. The oceans emit less heat to the atmosphere during a La Nina, so more heat stays in the oceans. During an El Nino, more heat is emitted, so ocean heat content stabilizes or dips a bit. But since the backradiation has risen so much due to CO2, the trend is inexorably up.
This is basic stuff, and you all faceplant at it. Given your ignorance of the topic, you shouldn't be bothering the grownups.
Japan Meteorological Agency|Global ocean heat content
Website provided by the Japan Meteorological Agency (the national weather service of Japan)www.data.jma.go.jp