There are no 'articles of impeachment.' You are getting ahead of yourself here.
Clinton was impeached for lying, under oath, to congress. Does it matter what he was lying ABOUT?
BTW, he was also disbarred and fined $25,000 for doing so. That is, he was disbarred from practicing law in Arkansas for five years, and from practicing in front of the Supreme Court forever. Not that he ever DID practice before the Supreme Court, but hey....
So...he lied to congress about using his power as POTUS to get a 21 year old intern to 'service' him IN THE OVAL OFFICE. Sometimes the details surrounding the 'BJ" are important, y'know? Your statement seems to absolve him and trivialize it. It wasn't the "BJ." He could have gone/hired a professional and perhaps had her show up at a hotel room...but no. OR he could have realized that he was in a fish bowl, by his own choice, and given himself an eight year hiatus on that sort of "relief," but again no. He got his jollies THIS way.
BTW, I was not in favor of kicking him out of office or even the impeachment. I thought that the exposure (pardon me for that) of his actions and his disbarment were sufficient. The American people elected him, they knew what they were getting when they did, and they got it.
He wasn't the worst president we've ever had. Not the best, but not the worst. Buchanan still holds that honor for all sorts of reasons, including pretty much ensuring the Civil War. Buchanan was, btw, a Democrat.