Were Rocket League Crates a Mistake?

Rocket League has recently joined the microtransaction scene by implementing Champion Crates into the game. In order to open a crate, you must purchase a key through Steam for roughly $2 in US currency. Before this launched, many people were complaining about it being similar to how CS:GO does there crate system. Psyonix has shown that this is not the "case" (get it?), and doesn't want to run their system similarly to CS:GO. Psyonix has actually addressed these issues directly, stating:

• Crates will contain cosmetic content only. We have a strict "Don't Sell Advantage" policy for Rocket League, and we're sticking with that.
• There will be no Steam Marketplace integration with crates. We are definitely aware of the problems related to third-party gambling in other games and we are not interested in taking that approach.
• Players who don't want to interact with this system can hide it entirely with a single checkbox. Also of note, this won't affect or impact our current item-drop system in any way.

So, why did Psyonix even have the idea to attempt such a controversial system? Well, for each dollar that's spent on keys, Psyonix puts some of that money into the prize pool for MLG competitions. In a way, Psyonix wants to use this system to gather profit for themselves, as well as have the opportunity to offer up more money to teams that compete in professional play. The crates contain some really cool new items, and being a fan of Rocket League, I'm glad they're not completely selling out here. I understand the move, and so far, I agree with their logic behind it and I support what they do with the cash. Hopefully these policies remain the same and there is no Rocket League crate gambling going on all over the Steam Marketplace.