I can't say I've seen many failures with any Lippert electric jack. Lots of them installed on "ground control" leveling systems, and I don't believe we have ever changed one out for motor failure.
If they are using the same motors for the TT leveling system, I wouldn't worry too much about it. Just my 2 cents worth.
2012 Copper Canyon 273FWRET being towed by a 1994 Ford F350 CC,LB,Dually diesel.
Airlift 5000 bags, Prodigy brake control, 5 gauges on the pillar.Used to tow a '97 Jayco 323RKS.
Now an RVIA registered tech. Retired from Law enforcement in 2008 after 25+ yrs.