All these tricky games with multiple devices and precise timing are ridiculous, and completely unfair for people who can't use three mice a tablet and a phone simultaneously.
It's clear from the threads on here in the last couple of weeks that you can do everything within your power to get in as soon as the tickets become available, yet still be screwed by getting blocked or kicked out even after selecting your seats, and have to start again. Then other people a few minutes later have no problem at all. People have literally wasted the whole day without getting anywhere!
Surely for events (including gigs etc.) that are going to be over-subscribed, Ticketmaster should have a relaxed pre-registration system. All priority buyers register their interest for x tickets before a certain deadline (no first come first served 10 o'clock panic), and get issued a code that guarantees they will get tickets. Then have a period when the codes can be used, again without such crazy time pressure. Maybe for big occasions it would be better if the system operated more like a ballot, where it chooses seats randomly and you can take them or leave them? It's already been shown to be a lottery, so why not make it literally a lottery at each priority stage? No ST holder would miss out, all those with loyalty points would stand a fair chance, and anyone else would have to get lucky.