Wolfram Alpha, a year later

On 1 April 2011 I wrote to Wolfram Research:

I had a look at Wolfram Alpha and was slightly surprised that [it] returned, among many useful information about the matrix

12
01

the assertion that it had eigenvectors

(1,0) and (0,0).

You and I, of course, understand how to interpret the answer, but it could be quite confusing for a first year student.

I tried it again today, I got the same answer; see for yourself.

Eigenvectors as returned by Wolfram Alpha

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