The K/D of the 262 vs bombers is much higher that it's K/D vs fighters, almost twice as high.
In 2011, about 41% of the 262's kills had been multi-engine formation bombers, with an overall K/D of 12
The 262 K/D's vs the heavies for 2011 in detail:
B-17 9.14
B-24 10.63
Lancaster 19.03
B-29 2.89
Doesn't look "suicidal" to me.