Biggest advantage of the LC over a similarly sized pickup is that you are getting a dust and waterproof shell while retaining payload; with a truck, you are sacrificing a % of payload in order to waterproof and dustproof your gear. In the mid-size market, this can often be as much as 20% of payload, which then puts you right back into Jeep JL/4-Runner territory. A midsize truck gives you more volume for cargo, but the game of payload is still afoot, and the LC actually has some significant advantages in this space if they truly are maintaining a near-1700 lbs payload. A roof load isn't idea, for example, but it can address the "volume" issue and the LC comes with payload to spare for racks and other load carrying kit.
Did you happen on towing specs on that spec sheet? Curious what the official Toyota number will be.
Also will be curious if those payload numbers stick to that amount after the specs are officially released.