Bravopilot Euros lost one time, not really trend, I think their process works for them, why change now??
There's a feeling of this being the end of an era for the European team - a lot of the players that they've relied on for a long time are getting towards the end of their time as top players. It seems likely that this could be the last Ryder Cup (as a player) for Westwood, Casey and Poulter, all in their mid-40s or older, and Garcia isn't all that far behind at 41 - compare this to the US team, where Dustin Johnson was the oldest player at 37.
That's not to say that Team Europe can't be competitive - the formula over the last 30-odd years has mostly been to rely heavily on a few stars and get solid contributions from lesser-known players, and there's still a solid core there with McIlroy, Garcia and Rahm (and maybe Hovland and Fleetwood). There's also a lot to be said for the team spirit of past European teams and their ability to make the most out of being the underdog - still a long way out from the 2023 matches, but it looks likely that the US will be strong favourites to win in Italy.