Good thought, but doubtful it will be an issue. The turbine pull line takes about 60# to begin to furl the tail (less as it moves closer, as the moment arm gets longer). The steps are designed, among other requirements, to support a climber, and 'normal' activities (torquing bolts, lifting another 100# section during erection, etc.), plus margins of safety. In this case the load is split between the leg of the tower and the step, so the unsupported point load on the step is likely under 40#; and under 90# at max load on the actuator (150#).
My broader concern is the one you pointed to earlier, however, whether, the actuator will work reliably, long-term with all the assortment of weather conditions it will encounter.
Thx for your contributions, ~ks