In all seriousness, it probably is.
Force slam is a 30' / 6 square cone. If the 1st-level Jedi, with an average UtF check of around +7 or so, beat the stormies' Fort Defense of 12, they do 4d6 damage (average 14) and knock them prone. If they fail, they do 2d6 damage (average 7) and do not knock the stormies prone.
Stormies have 10 HP.
This is certainly not an auto-kill situation.
You're also running a party with three Jedi who have spent their only discretionary feat (unless they're human) on Force Training.
Their ability to kill things is limited to 12 squares away (6 movement, 6 Force Slam) which is the same distanc a charging Jedi will cover, in which case the Jedi will be killing things with their lightsaber anyway. Stormies are perfectly designed to do a bit of damage to the PCs using either grenades or autofire attacks and then snuff it once the PCs target them.
If you don't want this to happen, start things out farther away and spread your stormtroopers out. Send more of them. Arm them with something a little more substantial. Put them on speeders.
... but realize, when it comes right down to it, that the purpose of heroic characters in the Star Wars univers, and especially Jedi, is to kill lots and lots of stormtroopers in tactically interesting environments.
... because if the stormtroopers get the drop on your PCs, they're all taking 15d8 damage (3d8 on autofire, missing, for 1.5d8 damage x 10 stormies).
It's also not possible to do unless you are a human.