Stop judging a game on someone else their experiences and achievements and do it on your own maybe?
Classic is somewhat easier do to patch level, probably most noticeable in MC / Onyxia. Less from there up.
Having raided in Vanilla, the differences in how “hard” it is go way beyond just the patch difference.
In Vanilla. getting a guild with enough people for one raid group was already a challenge. 40+ people adjusting their real life schedules for gaming. That was kind of a new thing. Now you have guilds preformed or coming from Retail with 200+ members ready to go even before Classic went life.
Top guilds going through all content were few per realm compared to the hundreds of guild trying progress, of which many fell apart due to lack of patience and no steady progress.
We communicated mostly by typing. The few that had voice communications were rare, and quality usually was not to good in quality. If you were lucky the raid leader could voice, and about 90% of the guild could only listen and still had to type back.
Internet connections were mostly still dialup over a phone line. Lag and disconnections were common during raids. Had plenty of wipes because a tank or healer lagged out. Was all part of the experience and back then considered normal. Broadband like todays cable and fibre was Sci-Fi!
The first guilds doing content were figuring out everything for the first time. And after a while guides would pop up here and there, mostly not agreeing on eachother and lots of early guilds still had to figure out most boss fights on their own with limited input. Now you have perfected and exact detailed guides on just about any progression you can find in Classic. From leveling, professions, character specs, and every dungeon and raid boss.
Also for most people in WoW back then, it was their first MMO or at least one on this scale. Cooperating on a scale like in WoW raiding and progressing through dungeons and bosses like that was something new. Players now have 15 years more experience in WoW and more games like it.
Classic will never be the same experience as Vanilla. Don’t expect that, and just go trough it on your own pace, not see it as a competition. Have fun! it’s a game you know?