I think they're talking about if you want to integrate MyQ with other services you need to pay for their subscription. But that feature requires both engineering and ongoing hosting services from Chamberlain... so I don't know but it feels justified to have to pay a subscription for it.
Using MyQ through their own app is free. If anything that seems like a deal to not have to pay subscription.
....aaaah but they do! MyQ premium is $1/mo; $10/yr or $299 lifetime and is required for any external integration outside of the Apple, Amazon, or Google ecosystems.
I'll forgive you if you weren't already aware that Chamberlain traded to a new PE firm shortly before all of this nonsense began to be introduced. IMO The only reason that the product remains subscription-free in any capacity is because that toothpaste had already been squeezed. I assure you, they see a future in subscribing to your garage door, and if you think otherwise, woe to you.