The single most pronounced shift was with the launch of the caliber L121.1 in 2015.
On another watch forum, a long time ago, the Lange moderator suddenly "quit". He was well connected with the brand and key players at ALS. I'm certain you know Uncle Ed
In his final post he said:
"Like I said, a lot has happened to me recently. Over the years I have changed and the industry and market have changed too, resulting in me feeling less connected and involved with the watch-scene in general and with Lange in specific. I often get the feeling it is more about making money today instead of passion."
At time, I didn't know what he was referring too. He left in 2017.