Haven't you noticed how their nosediving started right around another significant event of the past few years?
Most development was done in Russia (disregard tales sold to the West about them supposedly being a Czech company, they were Czech mostly in the name, real work happened elsewhere). Exited Russia in the beginning of 2022, leaving many talented people behind: not everyone wanted or could leave because of families, obligations, personal beliefs.
Remembering where most of JB's money was coming from, can't really say they had a choice.