Plus...there is no need, other than an emotional one, to place anything there at all.

We are not living in an age where documents are unique and can be lost forever. With the internet, computer records and the archaeological reports, the contents of the capsule will be known and recorded. Our modern history will be [and is being] documented in more detail than ever before, and is available to all, and unless the internet and all power fails, that is always going to be the case. Yes, it's nice to read old newspapers, to touch something placed there in the past, but when you know it's there, you know its contents, there seems absolutely no point digging it up.

In fact, I'd wager that if you said you'd placed it there, but actually hadn't, but went along with the whole procedure, nobody would ever know, because nobody will be digging for it anyway!