I think it would be a very nice addition to the game if players could sign up automatically for heroic raids as well, like in case of instances.
Or perhaps a hybrid solution between automatic and customized model, like a player could start a raid group and have some options/settings for customizing the crew, like in case of M+. E.g. gear level requirements, previously done same raid/bosses at normal level, planned bosses to take, etc, and then the server would automatically assign players wo meet the criteria AND havent done bosses aimed at.
At the moment the “Premade groups” → “Raids - TWW” section is a haphazard garbage pile, it takes a LOOOONG time to figure out which raid to join, what the announced texts mean etc., and even longer to set up a raid group manually, not to mention keeping it together for the whole planned agenda.
Also, 95% of current heroic raids are half-finished, advertised with the tags “tips welcome”, “guaranteed” etc, which also means there is a shadow economy behind organizing raids which is not necessarily transparent and perhaps not aligned with Blizzards intentions.
Yes, I know noobs who did not look up strategy before a heroic raid can cause grief, delays and even failure, but the situation is the same with heroics at season starts.
One of the reasons why heroic raids are not a “thing” currently is the above, especially because delves offer as good gear with much less hassle.