If she *knows* she's going to receive < or "e" on her 3-3, it would be better not to attempt it in the first place; she'll get deductions anyway. She can get more points from a clean 3F-2T-2T with positive GOE than a UR'ed or wrong-edge 3F-3T (see Adelina Sotnikova for proof -- her 3Lz-3T in the WTT SP was downgraded and received -1.10 GOE). At that point, a clean 3Lz-2T would have given her more points.
In free skates she chose to do 2/3/2 and 2/3 and not 3/2/2 so the issue of her sp Is something else. She tries 3/3 for combos. Sotnikova has never tried to just a 3/2 she's rather try for 3/3 because she doesn't have the support from judges to cover technical regression. In combos for sp Julia could try 3t/3t or I saw 3s/3t if 3lz/3t stops working because she can't go Out and do 3/2 and get used to that because maybe she couldn't even vet of of Russian nationals if she got too used to 3/2 combos in sp. This idea of getting rid of hard jumps or combos would be too damaging. Julia got close to her old 2012 form in 2013 jr worlds by going backwards by no 3/3 in fs but lost there so they have to maintain hardest possible difficulty. Not do 3/2 in Sps - on purpose!