I read elsewhere that this strain is less deadly than previous strains. I'm no epidemiologist but being less deadly could allow it to spread further, which is obviously concerning. Also, the article says surveillance picked up the spread late. I wonder if the US's pulling back from the WHO and other international functions had anything to do with this, it used to make up a big chunk of its resources and staff.
The WHO is just another politically subverted organization. It declared covid for half an eternity as not airborne. If its connected with a loos of face or economic short term losses- many actors will put the pressur on to prevent the declaration of an pandemic or other travell restrictions. The us is not involved in this mess.
If by not involved you mean still massively subject to the public health and econonomic consequences of a containment failure, then sure.