For people more into it like ourslesves it might be easier but for your average person, people just starting up after buying a Pi or somehting its nowhere near as easy as it was. It's all ad filled, download a game on some dodgy hosting 'pay to download fast' crap now. Some sites even charge to just download altogether. They used to be way more clean sites.
I know many sites to get my stuff, the Internet Archive like you said for example. It's a fantastic site. I used the script for Emuparadise after it shut down but I got pretty much everything I needed off that so dont bother with it anymore. Tbf Arcade Punks and piggies sets gave me more old obscure systems than anything else. IA has helped massivle though with getting manulas, bios files, covers and various packs. These are sites I became aware of after getting deeper into it and knowing what I was lookign for.
Anyway rather than go aorund in circles with you saying its easy and me saying it isnt as easy as it was in the past, let's just agree to disagree on that issue. We both have our opinions which is cool. We both love Retro gaming, we can agree on that