[jbigelow76]

If you can see it you can make an informed choice if the tradeoff is worth it.

[shakna]

If you can see it, but can't block it, then you've already lost a part of it before you can make that informed decision.

[Zenbit_UX]

Of course you can block it, a private DNS with ad blocking is trivial to setup. Knowing about it is far important as you can make informed decisions.