Power BI incremental refresh problem

Hmmm.  This is not going to work.  #1, it's running more than one preview query per parition when running the incremental (looks like one for each power query step whether these are folded depends on the step).  #2, this is only happening with incremental, for loads without incremental turned on, it issues no preview queries.  #3, it does not do this with incremental for dataflows.  #4, these are not fast, the datasource has 100's of millions of records - folded queries run fast, select * w/ top 1000 do not.  #5, I need to go back and check 100+history partitions each time I run the load as historical data can change.  Going to try Table.View with OnTake argument, but not sure if this will work running from the service.  Can't imagine this is the way incremental was designed to work.