Calculating the failure probability without minimal cut sets

[Weker01]

I have some big Fault Trees that I only need to get the failure probabilities from.
Is there a way to only calculate the failure probabilities of these without the minimal cut sets?
If not shouldn't it be possible as one can calculate the probabilities with only the BDD.
Currently scram calculates every MCS even though I did not request MCS analysis.

i.e. scram --probability ./test.xml

I cannot use the GUI for this as it needs to run headless.