Perfectly adequate for a large proportion of their customer base I expect. There will be many whose kids have left home, and are perfectly happy with their Freeview TV. They probably have an iPad themselves, and may use Skype.
The adventurous ones may by now have an internet-enabled TV and use their broadband for catchup. It should be fine for that.
Most probably haven't got 5GHz wifi apart from the iPad. Perhaps the TV but 2.4will handle that.
The indispensable man or woman passes from the scene, and what happens next is more or less the same thing as was happening before.
My broadband basic info/help site - www.robertos.me.uk.
Domains, site and mail hosting - Tsohost
Connection - Plusnet
UnLim Fibre (FTTC). Sync 57584/13846kbps @ 600m. - BQM