If not "normal," that's certainly _common_. There is no proof or evidence required to issue one. The judge only reads a description of events. It is not required for the restrained party to be there to defend or present counter-evidence.
It's simply a 5-10 minute meeting between a judge and a person who alleges "fear" or "emotional harm." Exact laws vary from state to state.
They are free to file and cost 5-10 thousand dollars to appeal.
[1] http://www.dailyfinance.com/2010/03/30/the-high-price-of-res...
Edit: My initial comment understated the issue. Media Radar states that women are twice as likely to engage in unidirectional (unreciprocated) violence towards their partners are men. While domestic violence against men is real and subject to a lot of shame and silence, this estimate seems insane: I have previously seen figures like 10% of domestic violence stemming from women.
The idea behind a lax standard for TRO's is that if there is danger, the court should temporarily try to mitigate it, pending further process.