I think your take is terribly simplistic. In a professional setting, virtually all engineers have no say on whether the company switches platforms or providers. Their responsibility is to maintain and develop services that support business. The call to switch a provider is ultimately a business and strategic call, and is a subject that has extremely high inertia. You hired people specialized in technologies, and now you're just dumping all that investment? Not to mention contracts. Think about the problem this creates.
Some of you sound like amateurs toying with pet projects, where today it's framework A on cloud provider X whereas tomorrow it's framework B on cloud provider Y. Come the next day, rinse and repeat. This is unthinkable in any remotely professional setting.
Vendor contracts have 1-3 year terms. We (a financial services firm) re-evaluate tech vendors every year for potential replacement and technologists have direct input into these processes. I understand others may operate under a different vendor strategy. As a vendor customer, your choices are to remain a customer or to leave and find another vendor. These are not feelings, these are facts. If you are unhappy but choose not to leave a vendor, that is a choice, but it is your choice to make, and unless you are a large enough customer that you have leverage over the vendor, these are your only options.