I almost said "three weeks", but decided to back off on the hyperbole.
Yes, resistance to "flavor of the week" stack changes is definitely something that would turn poorly-managed companies off experienced devs. Companies still tend to be short-sighted on their experience requirements, though.
A company is only as good as its leaders. When the senior engineer in the team is knowledgeable and trusted by others in the team, it is a lot more likely that such futile efforts will not be undertaken.
Yes, resistance to "flavor of the week" stack changes is definitely something that would turn poorly-managed companies off experienced devs. Companies still tend to be short-sighted on their experience requirements, though.