The short form is that no doubt, they are, however it's more Rocket League Credits significant that this replaces an exploitative model that benefits from obsessional players doing themselves genuine mischief. For the more drawn out adaptation, we have to dive into the cloudy universe of incentives.
Under the old, recognizable framework, boxes containing arbitrary things inside a specific gathering would drop as you played. You'd have to purchase keys to open them, which worked out to 80p every when purchased in mass. These days, explicit plans drop as you play, and can be worked with Credits, Rocket League's new in-game cash. Player's extra keys have been changed over to 100 Credits a pop, or somewhat more if players had in excess of 9 lying around.
Resistance is centered around the more uncommon stuff, with, state, an extraordinary wheel outline costing 2300 Credits. You get more Credits for purchasing in mass: in the event that you needed those wheels, you'd have to purchase at any rate 3,000 Credits for ￡19.23. That is assuming that specific Blueprint had dropped for you, or you'd figured RL Items out how to exchange for it on an outside site.