Low range, Galio rank 2 ult has a much bigger range than rye rank 2 ult, galio's r3 ult even more so.
And 2nd, while you may have seen LCS bigplay$ w. his ult in solo q its far less likely your team will be coordinated enough to pull it off, so in soloq his ult basicallly can only be used to move between lanes more quickely which is really bland for an ultimate ability.
Plus, Idk if you've noticed he went from being picked often in pro play, to almost never after they took away the hourglass\ult interaction, because even w the coordination in pro play, 75% of the time that is what his ult was used for (its safety in combo with hourglass).
Tbh ryse has been a problematic champ for a while now, he's either too strong overall (maybe not in low elo, but when he's strong people who are good with him can dominate), or he's garbage. For example in S7 before his snare duration got reduced and his E CD got increased he was quite strong, then they nerfed those 2 things and he was super weak for a while, then Ult+hourglass interaction was discovered, and because he was so safe with that combo it allowed him to overcome his weakness from the E Cooldown nerfs and W duration nerf so he could safely scale up and get more CDR.
But now that this is removed he's pretty dogshit again. According to champ GG his winrate for plat and above is 43%, and thats down from around 46% since the patch that changed the hourglass ult, his playrate is down 2% from 4-2% since the patch, His winrate get up to about 51% on players who have played 200+ ranked games with him, but for OTPs and Mains this is actually a relatively lower winrate than what is normal.
Looks like the blue man needs yet another rework.