No, not because of the GE DP system, (which is not mentioned in specs) the ROVs (which belongs to Delta??) or the AHC crane. (Nor "vibrating recliners", sauna, or anything else of that nature)
But because the HOS Bayou is primarily a PSV, with a crane added on and don't meet SPS class requirements. She lacks ROV Hangar and Moon pool to be classed as a full fledged Subsea Vessel.
Besides she has low deck strength (5 m.t./sq.m.) small deck area (730 sq.m.) and lacks side thruster aft for redundancy in DP mode.
And yes, the standard of living quarters (24 air conditioned/heated staterooms certified for 70 person(s) berthing) is not up to international requirements these days.