In PHL today. Reporting 1 SM initially +PLRASN, 01/00 (temp was up and down a degree), then changed to +RAPL. In both cases, the line was long to the de-ice pad, as conditions constantly changed. We were holding on the gate and ramp was not pushing anyone unless you did not need de-ice. There was one carrier pushing stating they did not. One carrier that had several push stating "no de-ice needed" was eventually told that there OPS had directed all flights to hold on the gate. Am I missing something?? Does anyone allow "PL" to be reported that does not require de-ice?? As a new Captain, I dont see a way around it, but maybe I'm missing something...your thoughts ?? Thanks

EDIT: Although not stated, I am not just asking about a de-ice and go, but anti-ice with TYPE IV for conditions...THANKS
KPHL 291728Z 05016G24KT 7SM -RAPL SCT008 OVC012 02/00 A2988 RMK AO2 P0014 $
KPHL 291715Z 04017G24KT 2 1/2SM +RAPL BR SCT008 OVC012 01/00 A2989 RMK AO2 P0010 $
KPHL 291708Z 04015G25KT 3SM +RAPL BR SCT008 OVC012 01/M01 A2989 RMK AO2 PRESFR P0006 $
KPHL 291654Z 03018G24KT 2 1/2SM +RAPL BR BKN007 OVC014 01/00 A2992 RMK AO2 PK WND 03026/1635 PLE1559B19SNE19 PRESFR SLP130 P0016 T00110000 $
KPHL 291648Z 03016G24KT 2 1/2SM +RAPL BR BKN007 OVC014 01/00 A2993 RMK AO2 PK WND 03026/1635 PLE1559B19SNE19 PRESFR P0013 $
KPHL 291641Z 03015G26KT 3SM RAPL BR BKN007 OVC014 01/00 A2994 RMK AO2 PK WND 03026/1635 PLE1559B19SNE19 P0009 $
KPHL 291619Z 04017G25KT 5SM -RAPL BR BKN007 OVC014 01/M01 A2995 RMK AO2 PLE1559B19SNE19 P0005 $
KPHL 291614Z 04017G21KT 5SM -RASN BR SCT007 BKN014 OVC025 01/00 A2995 RMK AO2 PLE1559 P0004 $
KPHL 291559Z 05013KT 3SM -RASN BR BKN010 OVC020 01/M01 A2996 RMK AO2 PLE59 P0001 $
KPHL 291554Z 05015G20KT 1 1/2SM -PLRASN BR BKN010 OVC020 01/M01 A2997 RMK AO2 SNB17 SLP148 P0041 T00061006 $
KPHL 291534Z 04015G21KT 1SM R09R/P6000FT +PLRASN BR BKN010 OVC020 01/00 A2997 RMK AO2 SNB17 PRESFR P0011 $