Uplinker
Bugger the safety considerations
ALL the SOP/guidance re SE Taxi in/out stresses that it should only be done "when appropriate" and it is forbidden in LVP's and contaminated conditions.
So it is up to the crew to assess any threat performing the procedure and decide whether to or not. For example, I won't do it at night with a complex taxi route purely because I'd rather have two sets of eyes concentrating outside. Simple. But,more often than not, it is not an issue to carryout the procedure - and personally I'd rather have fuel available at the other end rather than burning it unnecessarily on the ground prior to departure.
Some people won't ever do it because of some personal mission
Not very Professional IMHO. Our role is to operate safely, efficiently, comfortably and Professionally - SE taxi procedures fit into that without problem - it's just a case of thinking about it and being sensible.