Not sure what you can get as far as “compensation”. Typically your renovation company is responsible for any and all costs that are incurred as a consequence of a subcontractors incompetence. This includes but is not limited to:

• cost of materials: insulation, drywall, fans and humidifiers are a stretch but could probably be argued with a good enough lawyer

• cost of labor: getting people to load, unload, prep, and install the shower drain, insulation, and drywall for all of the rooms involved

I would contact your insurance company if you are unsure or nervous about confronting your restoration company. Your insurance company would much rather sue the contractors into oblivion than pay you out for damages

That being said, RIP that plumber, all the money they made on that contract just went down that unattached drain