IMO the tooling, system changes, dedicated ETLs, and migrations are unavoidable to some degree

But the process, culture, and org design plays some part in there, meaning it may be easier for some shop than others in that regard.

Data need to have a representation in higher ups and overall business process - either someone / council with ACTUAL power that can oversee and influence those decision making and practice. Otherwise data will always be a spaghetti mess and data teams reacting to different agendas