This seems unfair. We have no idea who has been updating that site in the 8 years (presumably) since it last had any major changes - given the 2016 copyright statement.

Websites change hands. People try to take on updates in-house to save money. Who knows.

A cursory look at the agency's website shows they are perfectly capable of producing functional websites, so maybe let's not randomly disparage small companies when we have no idea of the context...

Presumably AvSax know what their website looks like.