The Geneva talks ended on Friday without a deal to end the conflict in Yemen.
The government has blamed the Houthi militants and their ally the former president of hindering peace efforts and showing no care about the fast deteriorating humanitarian situation.
Though the UN envoy to Yemen Ismail Ould Cheikh said the talks were a breakthrough gathering the warring parties after months of heavy conflict, analysts criticized the UN inability to guarantee something from the talks at least to alleviate the Yemenis' humanitarian suffering.
The UN envoy Ismail Ould Cheikh said a long road is ahead the peace process in Yemen while reiterating the calling for a humanitarian ceasefire.
Organizations are estimating 80% of the population have now become in need of emergency aid.
Analysts said the completely unproductive talks were a repeated mistake for which the UN should be blamed before the Yemeni factions.
On his Facebook page, Fuad Alsalahi, a professor at Sanaa University, said the UN has failed to help Syria, Libya and now Yemen.
"Our issues have been exploited in Geneva as the people are paying dearly, blood and precious things, to change their realities," he said. "The summary is that the UN is just legalizing the proxy war by Yemenis," he elaborated.
"The UN envoy to Yemen said he cares about the humanitarian situation and that was not a good idea because his duty is to help solve the political crisis."
Objectively, the failure of the talks was natural because the Yemeni factions have always proved their lack of visions focused on serving national issues.
Both the government and the Houthi militants are fighting a proxy war and powerful countries sought the failure of the talks especially amid the ongoing Saudi-led military operation against the Houthi militants.
It is about the Saudi-Iranian conflict through the transition government and the Houthi group.
What the Yemeni people need is that the UN takes the stubbornness of some factions seriously so that it can find a way to prevent them from taking advantage of talks at the expense of peace, analysts argued.
In the meantime, analysts expressed concerns over prolonged violence being used by militant groups such as Al-Qaeda to expand and deepen the lawlessness.
If ISIL becomes more active, Yemen will face combined terror from this group, AQAP and other militants including the Houthis, they said.
AQAP is the most active branch of the global terrorist network of Al-Qaeda.
At least there should be a change in the UN mechanisms of peace talks that should guarantee no party uses terror cases to achieve political gains, observers said.
The talks were scheduled to discuss the implementation of the UN resolution No 2216 calling on the Houthis to cede power, withdraw from cities, return weapons and stop violence.
"The agenda of the talks was not prepared perfectly. The UN envoy did not guarantee Yemenis would stay together in order to agree to implementing UN resolutions or a ceasefire from the first day," Alsalahi said.