Is it normal that Diablo 3 is very easy

Here is a table of the difficulty and how it portrays to drops and monster health and exp.

This is how I usually play from scratch (new season and 0 paragon points).

• I start on Expert because early levels are so easy.
• I always start with bounties, I never play through the campaign. I recommend this because it's a great way to get rift shards quick and easy and you can use all of them once you get to level 70.
• If you have never played through the campaign and you are interested in it, it's fine to start with the campaign.
• Once I hit level 40ish, I usually have to turn the difficulty either up or down depending on my current items. If I've found a really good weapon, I turn it up. If I haven't found a good weapon, I turn it down to Hard.
• It's always a good idea to KILL MORE AT A LOWER DIFFICULTY than it is to TAKE LONGER AT A HIGHER ONE.
• Once you hit level 70, start rifting. Blood shards and rift guardians will be a great source to get legendaries.
• If you can skip Torment 1, do it. Torment 2 is a HUGE increase in legendary find and exp.

yes, it is normal, after they updated the game they changed the difficulty settings, now you dont have to finish the game like 4 times to get to the hardest difficulty, instead you can adjust the difficulty to level up faster or at your own pace.