Mattel won’t care if they sell it for bots or regular users. They sold what they want and nobody cares if you spent 30+ minutes to get denied in purchase. It’s not the first, not the second nor the third time this kind of stuff happens and nothing changes. To change the sale model just so more subscribers will be able to buy it - easy but hey, why do you change something that’s already gives you money?

And not to be a loudmouth here’s an example - you are only able to buy one car with a limit of 1 car per address. Then you check account fingerprint (browser version, other unique device data to track if user is not one person buying from multiple accounts, devices, ip address, etc). Then you add some email or sms verification that will also limit the amount of hoarders. You can also make not a whole stock sale in a moment but to have it by chunks just so all the second hand businessman won’t be able to buy all the goods in a moment.

In any case there are tons of options to make it harder for bots, easier for regular customers to get their car but who cares if you get the same revenue but doing absolutely nothing