The problems with alt-friendliness in 9.1.5 have not really been resolved in substantial ways. There are some cute quality-of-life improvements that shave off a few hours here and there, but the biggest grinds that you have to undergo are still there. Korthia Grind is going to suck. Stygian Ember grinding is going to suck. Grinding for Soul Cinders on your alts.
Even with all of the cumulative changes being made in 9.1.5, this patch will STILL be worse than the previous patch (9.0) when it comes to alts. The biggest time-sinks that you need to overcome to adequately progress your character to a level of viability in the content are still present.
Torghast twice a week on every alt is still going to suck majorly. Grinding Korthia is still going to be a chore.
TL;DR: Rip-cord pulled is nice but the patch is still hostile to players who want to play with alts.