At least China knows you exist. (Joke).
--snip--
My belated point is: this could be plain ignorance on the part of the manufacturer. Some guy gave the address. Some guy couldn't figure out where Manila was, or some guy just put Made in China everywhere on everything they do.
Doesn't excuse them, but am just saying this particular incident could be less sinister than you think =) Sorry for the unpopular opinion.
I am pretty sure this is not such an innocent mistake buddy. The experience of being unrecognizable to the "main-landers" is echoed by people in India's North-Eastern states too. Just as in your case, internet and social media has bridged the gap a lot better.
And this is what is so insidious about China and CCP. They have become extremely adept at playing along the fault lines of other countries and societies. For example, India's eastern most state is called Arunachal Pradesh and China has long staked claim on the whole territory. So they keep doing subtle activities to stake their claim in the most innocuous of ways and wait for a reaction. For example, when a minister from that State had to go on an official visit to China, the chinese refused to give him a normal tourist visa saying, very innocently, that he didn't need one as he belongs to a state which already belongs to them. They continue to issue "stapled visas" to people hailing from the state of Arunachal Pradesh. They do this, despite bilateral talks at the highest level and their officials agreeing to take care of this.
They then go back and continue behaving in their typical deceitful and greedy manner to stake their claim innocently. As a lot of people in this thread are expressing, never ever trust the Chinese. To them, laying low to deceive the enemy is just a war tactic. There is nothing dishonorable or deceitful in their dictionary about it. Lot of westerners, particularly Australians who have seen greedy Chinese emptying supermarket shelves to sell stuff later will also stand testament to this. The Chinese people outside China are there to fill their pockets at any cost. Inside China, the CCP ensures full support as to its corporations by providing state support in dealing with private corporations in rest of the world.
Beware of the Chinese. They have plans far beyond COVID-19.