Careful, the surprise may be fake, because it was struck out and you both had to initial--if it was so weird, why did they just not give you a new copy that didn't have the clause?
I don’t understand what you mean, can you clarify? What is the difference between striking out vs printing a new contract, and why is one choice or the other correlated with the surprise being fake?
I suppose theoretically one could imagine a malicious company having a contract with language that is favorable to the employee, and then striking that out after the employee has already signed, with the intent to claim that the employee signed with knowledge of the struck clauses. But then again, if contracts were ever intended to be the end-all of legal dispute then one would think they'd use something less easily forgeable than mere initialing.
The lawyer was surprised that someone actually read the contract, not that the contract contained a satisfaction clause. The lawyer was probably already aware that the clause was there, and it's a standard contract that they use for all contractors.