I ran Rikti mothership raids for years on the Champion and Exalted servers prior to sunset, and have been running Rikti mothership raids on Excelsior since July. I've noticed one substantial difference between "live" and Homecoming that's contributed to a few Rikti mothership raid wipes on Homecoming, including a near wipe last night.
There is a serious and substantial lack of AoE mez protection. Often, I am the only person with any AoE mez protection at all.
Now, I know that, unfortunately, Force Field and Sonic Resonance are not nearly as popular on Homecoming as they were on live and for good reason. Sonic Resonance in particular is extremely rare. But everyone now has access to the Clarion Destiny at level 50, and still very few seem to take it, and even fewer seem to actually use it. Take it. Use it. You can have multiple Incarnate Destinies. Every character I have takes at least two Incarnate Destinies, usually three. Clarion Destiny is also useful for other things than Rikti mothership raids, like the Lady Grey Task Force and Incarnate trials.
Barrier is cool and all, but in a league with Dark, Nature, Time, Cold, et al, it's honestly not that useful IMO. Ageless is cool and all, but recharge and debuff protection doesn't matter much if you're constantly stunned.
This has been a public service announcement for the Clarion Destiny. Thank you.