In principle, Fantom is a synthesizer and not a Workstation like the old Fantom
In that case, I wish they would have used a different name.
The reason we bought a Fantom 0 because we thought it was a workstation that would allow us to consolidate a combination of equipment into a single instrument that might even have additional capabilities. So far, it is less capable, so we have to resort to workarounds. We were using a JD-XA and an MC-808.
The JD-XA is a superb synthesizer that does have the ability to play custom sequences per key in the same way as RPS or custom arpeggios, but the main sequencer is too short and lacks a song mode so it can't be used for fully arranged songs in a live setting. For that, the MC-808 has a massive sequencer for its time (1,300,000 notes, 800 patterns, 50 songs, 128 arpeggios, 128 chord memory, 50 RPS) and can play 102 minutes of mono samples which can also be sequenced and combined with MIDI. That means it can run full backing tracks for multiple songs recorded in the studio, it can play back full song midi sequences on multiple instruments live with player accompaniment, or a combination of these. It's also easy to operate during a show, as you dial up the song number you want with the big dial and big red display, and press play to select all the appropriate patches and start the song. We run the drummer's click track out of one side and the instruments on the other into the PA. Still, it's two pieces of gear, the MC-808 is getting old, and it is sloooooow.
The MC-808 takes several minutes per song to start up, so if several backing tracks are being used, it could take 15 minutes or much longer to start. The more samples being loaded, the longer it takes to start, to the point where it has far more song capacity than we have time to wait. On the rare occasion that it may lose power or malfunction during a show, waiting 20 minutes for an instrument to reboot isn't an option.
But anyway, taking away conventional keyboard performance tools like a useable arpeggiator and RPS just leaves me dumbfounded. Leaving out more modern features doesn't make sense either, because why upgrade if there isn't more you can do?
I forgot to mention that at least some of the built-in arpeggio presets don't even work properly. There are some 80's songs (among others) that use triplets from the arpeggiator, but the triplet preset isn't timed correctly. I don't know how they can screw something like that up. Roland needs to have at least one person on their payroll that will try to play or recreate classic synthesizer songs on their instruments before they consider them ready to release.
There are a lot of capabilities that would be welcome, such as those you mention, but I don't know how these can happen when they are messing up some of the basics.
Cheers