Hello Roi
Yes, I can see how the mention of hop count here may be misleading or confusing. EIGRP does not use hop count as a parameter that directly affects the calculated metric. This is true for both classic and wide-metrics EIGRP. However, hop count still plays a role in EIGRP, but it is used differently.
It serves as a limit to prevent routing loops and to control the scale of routing domains. EIGRP has a default maximum hop count limit of 100, which can be configured up to a maximum of 255. This limit ensures that routes with hop counts exceeding this threshold are considered unreachable, thus helping to maintain network stability and manageability. If the hop count exceeds this limit, the route is considered unreachable and is given a metric of infinity (i.e. 4294967295 for classic EIGRP).
What is being stated in the lesson is that this hop count limit is still in effect for EIGRP wide metrics. You can actually see the configured value in the lesson in the output of the show ip protocols | begin eigrp command where it says:
Maximum hopcount 100
I hope this has been helpful!
Laz