I think you meant to say Nino here. I don't think we have enough of a sample size to say changes in Ocean temps/Pac jet has completely overwhelmed the characteristic impacts ENSO state has on our weather patterns. That is arguable at this juncture. 2015-2016 isn't that long ago and the outcome of that winter was very much on par with a strong Nino- warm overall but one 2-week colder period with some blocking produced a KU. The results of winter of 2017-18 was in alignment with the character of a Nina for the MA. The last few years the 'expected' ENSO-atmospheric coupling has been muted/overwhelmed by other factors like the MJO. One of those years, 2018-19 I think, the Nino got going late and ended up being diffuse/undefined, and the atmospheric response was minimal. This sort of result may or may not be an indication of things to come. We cant know yet.