Interesting, an endless source of funding for the legal profession I suspect. At the end of the day it comes down to a decision by a Court and what we say here is largely irrelevant.
(1) as PIC or co-pilot unless he/she has carried out, in the preceding 90 days, at least 3 take-offs, approaches and landings in an aircraft of the same type or class or an FFS representing that type or class. The 3 take-offs and landings shall be performed in either multi-pilot or single-pilot operations, depending on the privileges held by the pilot [...]
If the a/c is certified for single pilot operation and someone esle is PIC I still don't see any prohibition on the non-PIC carrying out the take-offs and landings, subject to the common-sense caveat I posted earlier.
Mike