Hi,
There is no penalty like thing in EE.
I'd rather suggest you another better way for you.
Your CRS is 411, so there are less chances for you to get an ITA, since lowest till date is 415. (However, I'm no one to predict this!) There is some waiting time yet to get one.
But, let's say even if you do get an ITA, then you'll have 90 days to submit your complete profile. I think they are more than enough for you to gather all the supporting docs for your spouse's work experience.
You better include your spouse's work experience now in your EE profile. By the time, you gather all the docs. What say?
People are here who are struggling to increase even a single CRS point, and I don't think you should waste any opportunity to increase your CRS while you have one. Even 2 or 3 point increase also can make a significant difference.
All the best