I think it was in the listener's mail section of Basicbrewig radio this week, that someone wrote about a similar issue, and Jim, kinda laughed and said the same thing that it is going overboard...
People who are paranoid about oxydation need to realize that if you are not setting your beer aside for a long aging, then you will probably have drunk all your beer long before any cardoard tastes would develope. Oxydation issues are not something that develop immediately....Most of my drinking beers are gone in a couple of months, and sometimes less depending on my pipeline, or how much I like it...For example my Deadguy clone tends to get drunk quite quickly, because I like it so much. Even if I have four or five different beers sitting in my fridge , I end up going for it the most...I could probably dump my entire O2 bottle into it at bottling time, and never notice if it's been oxydized...it just won't be around long enough for me to find out.
It doesn't mean you abuse your beer....It just means you don't worry about it, especially if you make a little mistake or something.