Salamence is meant to break stuff and can roost anyways. Zapdos is a staller who can also roost and Gyarados can Taunt or kill stuff to buy leftovers time. Unless this pokemon ends up with a recovery move and/or bulky, SR weak is not a good thing. And bug typing isn't good enough to warrant it. Bug and Electric attacks are resisted by 7 types when paired.
Regardless of how much I like Bug, SR weakness is Never a good thing. It's a shame that it's a deal breaker for lots of voters but that's the way it is.
Also the pairing of Bug and Electric is not resisted by 7 types! There is No one type that resists both Bug and Electric moves. In fact, there are very few existing dual types that resist both Bug and Electric - Steelix, Gliscor, Magnezone and Fidgit are the only ones that spring to mind.