I'll take whataboutisms for 500. No they would still be very much enjoyed today, people wouldn't cry anymore than they do about it already, which is little. Jesus the lengths some people go to defending this show.
Before you complain yes it would be less read because of the massive influx in entertainment it would have to compete against, but for world building fantasy Tolkien is still a powerhouse and people would still read.
Every elf got complacent and then got captured with none having escaped to warn others to get an army? Pretty fucking massive failure, maybe if you want to do such an extreme you should show it to use, craft something at least a little believable for the audience such a screw up. I mean we are talking about Elves, they have crazy vision, and none saw the trench, or orcs coming?