The thing is, do you actually need 1.1GB? Cos streaming HD footage needs about 10-20MB.
Need is a strong word, but why have slower when you can have faster? Streaming HD takes more than that, I presume you are talking about Netflix etc, but services also aren't very good. They're "good enough" for some people, but they're heavily compressed and even if showing 4k resolution, it's a very low bitrate for it and watching a movie on Blu-ray (or a properly done rip thereof) is night and day vs watching it via a streaming platform in terms of both picture quality and sound quality, and then dodgy fire sticks etc are a degree worse than that also as they're the same compressed content, compressed again. For HD video Blu-ray spec has a capacity of 45Mbps bit rate and for 4k 128Mbps, which doesn't sound a lot but many people connect their TV's via WiFi rather than Ethernet, and WiFi is a burst technology so if Netflix/amazon/Disney etc all used those sort of bit rates everyone would be complaining about buffering all the time as even though their internet is much faster than that, it can't deliver it consistently so you get spinning wheels. But if you are happy with Netflix and don't play games then yes, all you need is 50-70mb max.
As above downloading games like call of duty, if they release a 90gb patch, which is not infrequent, downloading that on a 70mb connection would take 2 hours 51 minutes. A full quality Blu-ray rip is often about 30gb-50gb which would be 57 minutes to 1 hour 35 minutes.
We've got 2gb youfibre and those same downloads would take 6 minutes and 2 to 3 minutes at top speed. I used to hate waiting for a new game to come out and waiting for the download to complete but it's a thing of the past.
I've just backed up a failed 18TB HD to a mates remote NAS and then redownloaded that data to a replacement drive as I didn't have a free bay as bought a replacement drive while the RMA goes through. Just over 3 hours each way. On 70mb fibre that would take 571 hours (23 days 19
Hours)
I doubt many people need that speed though, but what it does give you is headroom, especially if you have multiple devices or people using them. If you have 3 kids and a work PC you can assign each one a bandwidth limit and they've all got their own fast connection.
The other benefit is often larger packages come with increased upload speed, although outside of altnets they are still tight with it - I can upload at the same speed as download, which means I can use cloud backup at pretty much instant speed and I can access my media library remotely with zero lag. Music in FLAC on the go, cctv streams, vpn server at full 5g speeds, remote play on ps5 and so on. I'm more than happy to pay a few quid extra for everything to be as close to real time as possible