There is no need for Apple to be in this market, there is no problem to be solved for 99.9% of people.
Usually, you don't even want to remove the PoS router you get from your ISP from it's box. In my experience no ISP ever gives away decent equipment, it's just the cheapest thing they could order in quantity.
Another issue with an ISP-issued router is that you have no idea what they did and can do with it. I know of several ISP's that have full remote access to the routers they hand out. Basically, you risk exposing your entire home network.
There are have been some guides to try to bypass the router and go strait to the OTN but it is extremely non trivial.
I hear it's a challenge to avoid the standard Verizon router if you also have TV or phone service through Fios.
I also confirmed this a while back on some forums but perhaps they have changed this. It is good to hear you had success. Do you have a residential or biz plan?
Edit:
Here is the link (I was mistaken and thought it was on a forum): http://theassociatespress.com/bypass-fios-router-entirely/
Like I said before it is pretty non trivial and you have to plead your case to them to let it happen.
My own household used its own router with the Verizon router configured as a MoCA bridge almost exclusively from 2006 until 2015 when we cancelled FiOS TV in favor of an OTA TV antenna. There were a few brief periods of time where I tried having Verizon's router be the gateway router, but it turned out to be awful.
Expect to hear the CSR make vague references to advanced features being absent when saying that you want to use your own router over their advice to rent theirs. The only "advanced feature" that would be absent is Verizon's remote management backdoor.
Of course there is a need. Apple has always been one of the first to use new WiFi standards, the Airports made these transfer speeds non-theoretical. My three year-old Airport still beats my 2016 cable modem royally on 802.11 AC. And this is not one of those cheapo cable modems (basically the latest and greatest Fritz!Box).
A large chunk of Apple users that I know have an Airport or Time Capsule for these and other reasons.
Experience tells me this is not actually the case. Provider-provided routers are a major PITA if you want them secure and stable.
I also had a router from another UK ISP that would crash and hang if you sent it a malformed IP packet (ie put its respond-to address as itself); it'd go mental replying to itself and then processing the messages it sent to itself. Not quality.
The EE broadband router I had would hand off its internal web admin session to external visitors if they connected whilst a web admin session was in progress. Yes, let's hand our internal web admin session page to an external visitor....
BT sent another hub that looked identical and worked correctly; underneath it was a Siemens instead of a Thompson I think.
So all in all, I have found that the ISP boxes were never really finished, and some (like Sky's box) needed rebooting periodically as I recall, so buggy too.
to be fair, I've got $1000 cisco hardware that can't wrap the external IP like that...
same-security-traffic permit intra-interface
static (inside,inside) ...
Time Warner charges $10/month for theirs, and they're awful.