I'm confused here, do people think it's too easy or too quick? Saying "It's too easy, it can be done in a couple of hours" doesn't really seem like a solid argument. I think people are just mad because SE made it super easy to get to 50. Endgame content has never been all that hard, it just usually took a lot of time and commitment to partake in it.

Let's just admit that the only logical reason to phrase the concern as "Relic is too easy to get" is because you're saying "Everyone I see has relic and I feel less special now." Otherwise you'd just complain that the content itself is too easy.