I was wondering about SEE as well. I think from my point of view with my idea of Se DS is that when one is motivated they can accomplish a lot and do a lot and perhaps also during such times see themselves more like (imagine they are more like) and appear sometimes more like Se dominants (I mean I wouldn't say this would be universal or something but maybe one way Se DS can express itself).
I don't know enough about the "risky endeavors" to know how actually risky or not risky they are or what was done as a back up plan... but I wouldn't in my mind see Se DS as being incapable of just throwing itself into risk in certain cases... why matters more than what.
Anyway, there are other types like Beta types I wonder about as well.