On points raised here:
1) On the number of lifts- 3 seems to be generic now. As someone said above, American Smooth used to be two, is now 3, Argentine Tango, Salsa and Charleston were unlimited, but 3 now seems to be the unspoken rule so that there's more dancing and the woman doesn't spend 90 seconds with her feet off the ground! 3 in Jake's salsa is perfectly acceptable.
2) As for "faffing around" the two most prominent, I felt, were Alison and Judy's routines. I suspect they would get away with it more than the likes of Frankie or whomever has a chance at winning the title, simple on talent level. It's week two, and they're two contestants not expected to do well.
3) As for hold- Alison might have gotten away with it simply because in America they have slightly different rules as to hold in the foxtrot. Usually that's what SCD has the American Smooth for (basically American rules Foxtrot but let's throw some lifts in there so it's not just a second Foxtrot!) I agree there was too much out of hold, but it took it until it was Natalie Gumede in week 4 or 5 for Len to crack down last year. When Pixie or Frankie do a routine with not enough in hold, expect the rules to come down on them like a ton of bricks since they could feasibly win the competition!
4) Sack the props department with immediate effect.