Another example of Google showing you not what you searched for but what they think you should see.
How is this not what you searched for? Is there an implicit constraint you think Google should be applying?
Note that search results have long favoured giving you an intentionally diverse selection of results in ambiguous cases, so you can narrow down for what you want more easily. Otherwise you'd probably get 12 different images of whoever the most popular celebrity is, which is probably not the most useful result in practice.