We could go forever discussing "If X didn't". Telcos are getting whatever they started. If they wouldn't kill WAP OTA-Push (OMA-WAP-TS-PushOTA-V2_1-20051122-C)

We could go forever discussing "If X didn't". Telcos are getting whatever they started. If they wouldn't kill WAP OTA-Push (OMA-WAP-TS-PushOTA-V2_1-20051122-C) 10 years ago, they wouldn't have their network overloaded today, because you would not need long-living TCP connections. (Similarly, if they wouldn't kill E.164 ENUM, they wouldn't have problems with phone numbers migrating among providers. History is full of examples of telco shortsightness).