The initial 2 questions raised are Motive and Ethics.2 sub elements each.
With some ominous potential apparent when one expands the issues a bit.
If you feel me alarmist do please recall that history is being written by how we handle issues like this one. The internet is unarguably now a part of our lives.
Control of the internet thus becomes a control of our lives! Oh, my questions?

Is it a profit motive of picocredits per typo cash flow, or some motive where  breaking something in DNS as preparation to net anti-neutrality directs this.

Is it ethical to break established de facto practices for self serving reasons?
And is it ethical to alter the responses of a customer's software by literal misdirection!

That last one is the most potentially abusive. Consider the history lesson of how we got dial telephones. Almon Strowger was losing bodies to a rival undertaker when human telephone operators "redirected" his calls.  Is DNS any different of a "redirection?" Or consider it as social /religious /political agenda.

THINK HARD on the next implied endpoints Type in X issue expecting truth and be directed to profitable lies. But of course truth is  the enemy of some profits.