If the SOP does not prohibit it and the proper procedure in the manufacturers operating manual is followed then there should be no problem. Some aircraft have enough power to taxi on one and with two engines operating, taxi speed has to be controlled with frequent brake application. This causes hot brakes. The main thing is not to do your own "thing" but follow the procedure in the manual. It is normal to taxi on the engine that provides hydraulic pressure to the brakes for instance, and shut down the engine only after starting the APU.
If you know that a turn will have to be made in the direction of the operating engine then keep the speed up. The problem lies in getting too slow and applying power on the wrong side.
Hope this helps.