Their end goal was to see just how these updated vehicle design rules would work, with the possibility of them moving beyond the Land Raider, and not ruling out rules for matched play at a later date.
For those of you that have been a part of Warhammer 40,000 for as long as I have or longer, remember with fondness the ability to design your own vehicles within the game. Yes the joke about the deodorant Predator is still hanging around, but 3rd edition is where the vehicle design rules were an amazing part of the game. Hopefully they will be so again.