“One guest” for priority security when with child!?

Greetings, all.
Three weeks ago, I flew VS from LHR with my wife and 9-year-old son. I am a FC Gold member. We have traveled together as a family since my son was 4 months old, and always used the priority security lane as a part of my FC Gold benefits.
I was shocked three weeks ago to be told that I could not bring my wife and 9-year-old son both through the priority security channel, because Gold members are “only entitled to one guest.”
For the past 9 years the three of us have never once received so much as a glance when using the priority security lane together.
I fully understand that the Delta partnership has caused crowding in the LHR CH, and may also sometimes cause lines at priority security. But to suddenly start telling families they can’t go through security together (unless they go through the standard security lines, and forgo this FC Gold benefit utterly) strikes me as a pointlessly unpleasant, bean-counting policy. I also think it has no effect on line length in practice; there are not large numbers of children in the line anytime I am there (if any, on most occasions).
Is there any point in my voicing my dissatisfaction to VS management? I am just one customer, but I really do find this erosion in service and the consequences for families traveling together onerous, to an extent that it makes me wonder whether it was worth renewing Gold for the past 10 years (on the cusp of GFL in 2.5 weeks!).
-Brad
Three weeks ago, I flew VS from LHR with my wife and 9-year-old son. I am a FC Gold member. We have traveled together as a family since my son was 4 months old, and always used the priority security lane as a part of my FC Gold benefits.
I was shocked three weeks ago to be told that I could not bring my wife and 9-year-old son both through the priority security channel, because Gold members are “only entitled to one guest.”
For the past 9 years the three of us have never once received so much as a glance when using the priority security lane together.
I fully understand that the Delta partnership has caused crowding in the LHR CH, and may also sometimes cause lines at priority security. But to suddenly start telling families they can’t go through security together (unless they go through the standard security lines, and forgo this FC Gold benefit utterly) strikes me as a pointlessly unpleasant, bean-counting policy. I also think it has no effect on line length in practice; there are not large numbers of children in the line anytime I am there (if any, on most occasions).
Is there any point in my voicing my dissatisfaction to VS management? I am just one customer, but I really do find this erosion in service and the consequences for families traveling together onerous, to an extent that it makes me wonder whether it was worth renewing Gold for the past 10 years (on the cusp of GFL in 2.5 weeks!).
-Brad