I think Bob C has it right over tactical ride/substitutions. If you have a full team, not just two top ones, you do not need to use this silly system.
If all your riders are capable of scoring points, you do not get far enough behind to need to use this silly system.
Scunthorpe Scorpions have used it only twice, to my knowledge, this season. Both times due to having riders absent.
If one team have got so far ahead of the other team, it is that all that teams riders are taking points.
Too many teams pick a good number one and two but fail to realise, matches are won by teams who are capable in positions 3 4 5 6 and 7
Perhaps the method of rating/grading a rider needs a change.
But in my opinion, Scunthorpe have won over the last two years due to not only good top placed riders, but excellent reserves. Funny that our team can still hold its own, even after some due to increased points average/grading are moved up and others down to reserve.
A lesson for any team wanting to win at this sport.
Pick a good all round team. Not just import riders from a higher league and hope the rest can score.
