Your isp is legally resident in the country most likely to want to spy on you. There are also very few isps per country, so it's less work for the attacker to cover everyone they care about.

There are vast numbers of vpns, so total coverage is impossible. They are also very likely to be in a different legal jurisdiction so it's non trivial to do.

So, yes, you have, by making yourself a harder target despite having the same amount of centralisation on your part