Something else that needs to be mentioned is the fact that for the past 3 or 4 seasons, there has been a very delayed map pool announcement. The most notification about which maps are in the rotation that I can remember was a week before the first match, while this past season I'm pretty sure we only had confirmation about the map pool the weekend right before the first match, so around 2-3 days before.
I think that we should know the map pool at least a month before the season begins, especially for Advanced if we want to continue having pick/bans during the regular season. Most good preparation is going to be pre season while when the season starts you're just refining your teams map strats and plays, and now because we didn't know [volatile map #3] was going to be in the map pool, now we have to try and fit in practicing that map and ultimately deciding to just perma ban it for the rest of the season, which is pretty much what happens with most advanced teams.
I'm not sure how RGL would like to fit that time in, maybe right after map pool surveys or some time after, but I do know that this is a change that really needs to happen.