Catseye - there is still a query over an application from a student doing double science at a GS where the uni knows that triple is the standard offer.
It implies the student is weaker ....
I hear what you are saying.
But why force a child to do something they do not want to do? I think most top admin tutors are capable of working out why an applicant did extra language if DC is applying for Language course ( even at a top flight uni) instead of biology(or triple science) given all DC will only be doing 9-10 with the introduction of harder linear 1-9 gcses.
I think the issue you highlight is only really applicable for STEM students.
I try to avoid anecdotal (since it is not falsifiable) but DS hated with a passion his MFL, yes, he manage to get an A* in the end but sacrificed so much revision time on one subject and let one other subject slip from definite A* to an A!
But the upside is two life lessons he would have hopefully learned.
1) to have a mindset that he can do anything with hard work and perseverance .
2) it's not over until the "fat lady sings"-complacency and overconfidence will be the undoing of anyone who thinks it'll be a walkover.