No. You should be able to do it, but not easily.
I don’t know you or your abilities. But I can very much understand that someone putting together a Normal/Heroic pug with an aim to clear probably just wants to blast through it and not wipe for hours because someone keeps nuking the raid on the first boss.
If you want to attempt content at an appropriate entry level, make friends and run with a guild. You’re not going to find that kind of thing in a pug.