The damage was localised to the area around the failed cap. The fire did not spread to the rest of the PCB. I have seen similar damaged PCBs from reputable manufacturers of consumer electronics sold in the EU, with similar localoisation of the damage, so its is extremely unlikely that the PCB laminate was made with a non-self-extinguishing resin. Whether or not it meets EU and US standards for PCB flammability would require testing, but I think we can assume that if it does not, it isn't far short of meeting them.
Would I be happy to have one of these specific board version PSUs (assuming I had a suitable raw DC supply to run it from)? Yes, but the first thing I'd do would be to remove the offending cap and fit a suitable low ESR electrolytic across the output terminals. Its obviously not got the build quality of a comparable lab grade PSU from a leading test equipment manufacturer, but as its an order of magnitude cheaper, seems reasonably robust apart from an easily rectified design flaw, and has the 'grunt' you need if you are doing stuff like robotics on a budget, IMHO its still a good deal. If the manufacturer did a recall offering exchange or partial credit if you remove the cap yourself, and also reworked existing stock to remove the ceramic cap and supplied them with a suitable leaded cap + fitting instructions, it would be an entirely satisfactory resolution to the issue.
Would I repair it? Yes, if the manufacturer didn't want the failed board back or if it was out of warrenty. Depending on the extent of the damage, once I'd confirmed it was savable, I might choose to move the fusing off-board - depopulate and link out the SMD fuses then fit an inline holder and a 15A fuse.