I have hypercos and top hats. There is no requirement to install the top hats, the Hypercoil springs work fine with stock.
However it appears that the point of most likely point of failure on Raptors after installing spring (or other) lifts is the top hats. So if you’re running your truck aggressively like
@Dgchurch, it may make sense to add the top hats when you’ve got the springs off as there is no additional work/labor cost to do it then.
Limit straps would be the next upgrade to consider.
My general philosophy is when I’m making changes outside Fords engineers original specs, upgrade for reliability. This approach makes mods more expensive, but may better reflect the true cost of making the change.