He owns Visa, with a chart similar to MA. For MA it's been too easy for too long. It's low-vol, offers growth, boasts a wide moat, BUT there's beneath the surface investors will question valuations of the credit card companies. So, they might come down a little. But you're fine holding this for 25 years.
No one expected Apple+ to cost $5/month. Roku is an open platform, not tied to a particular service; they're in a weird place as this streaming battle continues. This will continue to fall.