I would imagine that people who use those relays (of which I am one) are like me, and they added them a long time ago when the very devs who you imply should know better pushed them as a good idea to solve problems with Nostr’s decentralization. It’s why I’ve left them there, and unless a client I’m using gives me issues I have no reason to change them. If it hurts you, unfollow me. I genuinely don’t care that it bothers you which relays are in mine or anyone else’s lists.
Discussion
Yeah, things have changed since those days. If you don't update your lists at some point nothing is going to work and no one will see your posts. This has happened many times with other users.
Each relay adds ~5MB on the data plan of each of your followers. You can "not care" as much as you want and people can decide to just unfollow you.
But it seems idiotic to me to keep forcing wrong relays into your followers just because you are too lazy to fix your shit up.
If you can't fix your own shit, why would any dev fix their shit for you?